Ecology Review

Today you received a Unit 1 Ecology Review packet! Because it has been so long since we have talked about ecology, I strongly recommend working through the packet and making sure you understand the concepts. Below is a completed copy of the packet, in case you get stuck or if you would like to check your answers.

Completed Review Packet

Finals are coming up fast! Let us know if you have questions :)

-Ms. Barnes

Unit 3 Test Review: Day 2

The countdown for the first semester is going quickly! Tomorrow is our last unit test. Below you will find all of the topic worksheets given in class today, as well as the answer keys. We will get started on the test immediately, so please email me any questions you have!

Practice Worksheets
Answer Key to Worksheets
(Cell Structure Answer Key)

See you all tomorrow!

-Ms. Barnes
raechel_barnes@dpsk12.org

Unit 3 Test Review: Day 1

Hope you all had a great day with our guest teacher! Below you will find a copy of the practice test, as well as the answer key. The answer key will be presented in class tomorrow as well! Based on your results from the practice test, tomorrow you will work on a practice worksheet for the four major topics of Homeostasis.

Blank Practice Test
Practice Test Answer Key
CER Exemplar

Please email me if you have any questions!

-Ms. Barnes
raechel_barnes@dpsk12.org

Behavioral and Physiological Responses and Positive and Negative Feedback Mechanisms to maintain homeostasis

Whew.  That was a long title.

Today we are learning about how organisms can choose actions to help maintain homeostasis (behavioral responses) and about how their bodies do this automatically (physiological responses).  Additionally, some responses represent negative feedback loops, keeping conditions constant, and sometimes there are positive feedback loops where reactions build and grow constantly (unusual for homeostasis!).

Here are today's notes.  Here is the powerpoint.

Oh, and a video to help explain feedback loops:

Blood Sugar Regulation

You're not you when you're hungry, eat a snickers!

Today we learned about one of the body's ways of maintaining homeostasis: Blood Sugar Regulation. By the end of class, you should understand and be able to describe the diagram below.

Below are copies of the cornell notes, both blank and complete. Homework is to write the questions and summaries on both sides of the notes!

Blank Cornell Notes
Completed Cornell Notes

Let me know if you have any questions :) See you all tomorrow!

-Ms Barnes
raechel_barnes@dpsk12.org

Transport and Osmoregulation CER

Today in class we practiced marking the text in CERs as well as grading them based on the class rubric! Below is a copy of the CER packet, as well as the scaffolded CER for Osmoregulation.

Power Point Lesson
CER Packet
Osmoregulation CER

Have a great break! :)

-Ms. Barnes

Solution strengths and cell homeostasis

Welcome back, Panthers!

Today we are learning about how different strengths of solutions can impact cell homeostasis in plants and animals.

First off, we need to know what a solution is.  It is a mixture where a solid (solute), often sugar or salt in biology, is completely dissolved into a liquid (solvent), usually water.  The image below models the idea of dissolving a solute in a solvent to make a solution.

Compared to the amounts of water, sugar, and salt inside of a cell, solutions can either be stronger (have more solute), the same, or weaker (have less solute).  We have names for these, shown on the diagram below.

These solutions affect osmosis in cells.  Water will move into the cell from a hypotonic solution, causing it to get larger.  Water will move in and out of a cell in an isotonic solution, so the cell size will be constant.  In a hypertonic solution, water will move out of the cell, causing it to shrink.  The Amoeba Sisters say it better in pictures:

To maintain homeostasis, an animal cell needs to be surrounded by an isotonic solution.  Plants are a little different, though.

Plants NEED to be an a hypotonic solution to be healthy.  The cell will swell up with water and it will push against the cell wall.  This makes the plant stand upright.  This is what healthy plants do.  When they run out of water, they wilt.

As always, you can download today's powerpoint here.  

You can find the guided notes here.  

A completed set of the guided notes are here.  

Your homework tonight is to complete the questions and summary spaces in all of your notes for the week and to make flashcards for the following terms:

• Hypertonic
• Hypotonic
• Isotonic
• Active Transport
• Passive Transport
• Diffusion
• Osmosis

Passive and Active Transport

Today we are learning about how cells move materials in and out.  We have learned that the cell membrane is in charge of this, but today we are going to learn about this in more detail.

Yesterday we learned about osmosis and diffusion.  These processes occur when there is a high concentration of solutes somewhere.  The image below shows diffusion.

These processes occur automatically, and they do not require energy to be used to move the particles around.  This is because energy has already been put into GATHERING the solutes in a high concentration in one place.  Because these processes do not require energy, we call these things passive transport.

Thanks again, Amoeba Sisters.  Please look at their site for tons of great biology animations.

In the image above, you can see particles diffusing right through the cell membrane.  Water, oxygen gas, and carbon dioxide can do this.  On the right you see particles moving through what looks like a tunnel.  That is a membrane protein channel, which allow substances like salts to move through.  Salts can't get through the cell membrane on their own.  This is still passive transport- the salts are diffusing, but they have to go through a special pathway.

Sometimes the cell needs to use energy to move things around.  Some molecules (like proteins and sugars) are too big to fit through the cell membrane, and the cell needs to use energy to bring them in.  Sometimes the cell needs to move things from low concentration to high concentration (the opposite direction of diffusion!).  These things take energy in the form of ATP, and this is called active transport.

It turns out that the cell membrane is a lot more interesting than we have portrayed it to be.  You can watch a video of all of this transport in action below.

You can download the guided notes here.  You can download today's powerpoint here.  Snowbound kiddos - I know there's a blizzard, but you're still responsible for this content!

Here is a complete set of the guided notes for you to use, as well!

Finally, if you'd like to have someone else explain this all to you, please visit this site from Diffen.com or view this interactive animation from Wiley.

Diffusion and Osmosis

Hello again, Panthers!  I'm back!

Today we are learning about diffusion and osmosis.  You can click here to see today's presentation.


Thanks to leavingbio.net for the images of diffusion and osmosis above.  You can visit their site for a great explanation of all topics for the week.

Thanks to the Amoeba Sisters for the image above.  Their site has great explanations for a variety of topics in biology.  Check them out!

Here is a complete set of the guided notes from today.

Your homework for tonight is to complete the questions column and summary for BOTH SIDES of your guided notes AND make flashcards for 'diffusion' and 'osmosis'.  You can find a reminder of the flashcard format here.

Oh.. here are our students from period 1, diffusing across the classroom:

And for you high achievers, here is an online simulation of materials moving through membranes:

Click to Run

Cell Structure Weekly Summary

We are wrapping up the first week on Homeostasis tomorrow! In preparation for the quiz, below are the materials we have been using in class as well as some answer keys.

Class Activities
Homeostasis Notes
Microscope Lab Packet
Cell Structure Synthesis Questions
Mad Minute
Mad Minute Answer Key

Review Materials
Review Sheet
Review Sheet Answer Key

CER Resources
Sentence Stems

Let me know if you have any questions!
raechel_barnes@dpsk12.org

-Ms. Barnes

Matter and Energy Study Answer Keys

I hope today's lesson informed you on what you should focus on most when studying for the upcoming Matter and Energy test on Thursday! Below are the answer keys to some of the worksheets you received in class today, including the practice test!

Practice Test

Mad Minute

Biomolecules - Still working on the CER!
Enzymes
Photosynthesis and Respiration
Exit Ticket Answer Key

As always, let us know if you have any questions! 

-Ms. Barnes

raechel_barnes@dpsk12.org

Matter and Energy Test Study Materials

Hope you are all excited to show off what you know about matter and energy on the unit test this Thursday! Below are numerous resources to help you prepare for the upcoming test. Right now, they are all blank worksheets, mad minutes, or some great videos to refresh your knowledge. The answer key post will be available Tuesday afternoon for you to check your answers to.

Worksheets
Blank Practice Test
Blank Mad Minute
Biomolecules Worksheet
Enzymes Worksheet
Photosynthesis and Respiration Worksheet
Photosynthesis and Respiration Cut Outs

Here is the data you will need to help your with the practice test CER.

Time	# of Leaves with Light	# of Leaves No Light
1	0	0
2	1	0
3	2	0
4	4	0
5	5	0
6	8	0
7	10	0

Informational Videos
Photosynthesis and Respiration
Enzymes

I'd also advise you to look through past posts on the website to view additional material. Some are even answer keys to activities we did in class!

If you have any questions, please let us know!

-Ms. Barnes

Respiration Day 1

Today in class, we covered the reaction for respiration and applications to how it works in the body. Below is a blank copy of the questions, and the answer key to the questions. Use this to study for the upcoming test!

Blank Questions
Answers to Questions

Please let me know if you have questions :)

-Ms. Barnes

Photosynthesis Questions

Yesterday in class, we went over questions about photosynthesis in real world situations. Because we didn't cover all of them in class, below is both a blank copy of every question, as well as an answer key! Please use them to study for the test!

Blank Questions
Answered Questions

If you have any questions, let me know :)

-Ms. Barnes

Practice Quiz 2.2

Hope you all had a great day today! Below is both a blank copy as well as a copy with the answers to the practice quiz!

Blank Practice Quiz
Answer Key to Practice Quiz

Please reach out with any questions you have! I will see you tomorrow for the quiz :)

-Ms. Barnes
raechel_barnes@dpsk12.org

Mad Minute

Practice your mad minute! Below is a blank copy as well as the answer key (except for tomorrow's!) for you to use to help you study for the quiz on Friday. There is a lot of vocabulary in biology, here is just one way you can improve yourself on it!

Blank Mad Minute

Mad Minute Answer Key

Let me know if you have questions! 

-Ms. Barnes

raechel_barnes@dpsk12.org

Enzyme Lab Applications

We wrapped up our enzyme lab week by talking about the enzymes in our body. Below you will find a blank copy of the worksheet we did in class, as well as a completed copy for you to check your work with.

Blank Enzyme Lab Application

Completed Enzyme Lab Application

Have a GREAT 4 day weekend! I will miss you :)

Ms. barnes

Practice Quiz

Please look at the practice quiz in preparation for the first Unit 2 quiz tomorrow! Both the quiz and the answers are posted below.
Practice Quiz

1	B
2	B
3
Carbohydrate	Simple Sugars
Protein	Amino Acid
Lipid	Saturated Fats
4	A
5	A
6	A
7	A
8	D
9	D
10	D
11	A
12	B

Use the Biomolecules chart as well as your lab packet to study further. In the Biomolecules chart, pay close attention to the function of each biomolecule as well as what foods contain them! In the lab packet, make sure you understand what a positive and negative test means!

As always, please email for any questions :) See you all tomorrow!

Ms. Barnes

Biomolecules Pre-Lab

Below is the power point for today's pre-lab. Please fill in your own lab packet anytime there is a STAR!
Power point

You MUST have the hypotheses and procedure drawings complete in order to do the lab!
Complete Procedures

Email me with questions! Can't wait to do this lab with you guys tomorrow! :)

-Ms. Barnes

Nutrition Facts Labels

Today we examined nutrition labels and determined the type of food it was based on the biomolecules fat (lipids), carbohydrates, fiber, and protein. We also used information about Calories and serving sizes.

Below is the completed notes set for today's class, please use to fill in gaps as needed!
Front Cornell Notes
Back Cornell Notes

Bring in to class tomorrow a nutrition label taped to a blank sheet of paper!

Ecology Test Review

The first assessment is on Thursday, September 22nd. This is worth 40% of your grade thus far! Below are some study materials to help you prepare, along with the materials we used in class.

Class Materials
Ecology Vocabulary Summary
Review Sheet

What did you not checkmark on the review sheet? Use the resources below to help you study.
Food Web
Levels of Organization
Energy and Nutrients
Abiotic and Biotic Factors
Autotrophs/Heterotrophs
Producers, Consumers, Decomposers

Photosynthesis Formula
Respiration Formula
Photosynthesis and Respiration Gas Exchange

Carrying Capacity and Limiting Factors
Predator-Prey Interdependence
Exponential Growth

Human Population Growth
Excess Carbon Dioxide

Please email Mr. Trainer and Ms. Barnes with any questions! Send an email to the both of us, so that we can respond back asap.

-Ms. Barnes

Review Days

Hi Panthers!  Our very first unit test on Ecology is coming up on Thursday.

Please prepare by completing this practice test here.
You can check your answers to the practice test here.

You can also practice the important vocab using quizlet.  I have entered in the set of mad minute vocab clues, so this will also boost your mad minute score leading up to the test!  Click here to go to the set of quizlet cards.

Introduction to Population Ecology

Great job working hard on the graphs today! For those of you who might have some questions or need some guidance, below is the worksheet with the homework. Please email if you have any questions!

Blank Worksheet
Homework Page

Check your work from class below, but make sure you have your own copy of the worksheet to be collected tomorrow!
Completed Worksheet

-Ms. Barnes

Review Day!

Tomorrow is our first quiz!  To help you get ready, please use the following materials:

1. Vocab crossword puzzle.  This includes 20 important vocab words that you need to know in order to be successful.  After you complete it, you can check your answers here.

2. Study strategies.  This document suggests some ways to become fluent with the 20 important vocab word.  You can also click here to use my online flashcard set on quizlet.

3. Practice quiz.  This quiz looks a lot like the real quiz tomorrow.  Try it out and check your answers here.  We will review the answers in class before the quiz tomorrow!

Keystone Species

Hi all!  I'm still on jury duty.  I am expecting to be back on Wednesday.  Whew!  It has been awhile!

Anyway - today you are learning about keystone species.

Here is the reading and the assignments for the day.  The readings I referenced in the homework can be found here: Keystone Species & Prairie Dogs

Here are the cornell notes that you must complete in class (this is due for a classwork grade at the end of class - the questions and summary sections will be assigned for homework on Wednesday evening).

For the curious crowd out there, here is a video on keystone species to make it all come alive:




Here are more examples of keystone species, such as honeybees!: http://examples.yourdictionary.com/examples-of-keystone-species.html

Invasive Species: Zebra Mussels

Hi there students!  I'm still stuck in jury duty and Ms. Barnes is at class, so you will have a guest teacher.

Here are today's notes and assignment.  #5 (the informational poster) is due at the end of class.  Click here to see an exemplary informational poster about lionfish.

Here is the silent invaders video you need to watch to complete the homework:

Computer lab!! Welcome to the class website

Log in to student portal and check your grades:
https://spi.dpsk12.org/CookieAuth.dll?GetLogon?curl=Z2F&reason=0&formdir=10

Take the online quiz here:
https://docs.google.com/forms/d/1ETg8I5N-c53Qi-SD1p6COuVZjUKEImrcut1Hd5GvcUM/viewform

Growth and Fixed Mindsets

Watch the TED talk video from Carol Dweck and complete these cornell notes!

How to study for the final

The final is worth 10% of your grade!

According to the blueprint of the biology final, here are the topics you can expect to see, along with their weights:

As you can see, ecology (topics 1 and 2) is worth over half the test, while older topics from semester 1 and early in this semester make up the rest.

Today in class, you completed a practice final.  You received your work from this review week.  You have a packet that has everything you need to know.  NOW you need to USE it.

To USE the information in your packet, try one of the following:

1. Make flashcards of key vocabulary or difficult questions.

2. Use my quizlet flash cards to quiz yourself and practice on key vocabulary.

3. Make a "cheat sheet" (No, you can't use it during the actual final) of all information that is relevant on the final.  See the images below to guide this effort.

4. Ask a sibling/friend/parent to quiz you by asking you questions from the practice final.

5. Draw big pictures of big ideas or processes, such as respiration, photosynthesis, the water cycle, the carbon cycle, protein synthesis, mitosis, reproduction, food webs, trophic levels, etc.  This will make these ideas stick in your brain better.

6. Review your old tests and quizzes to identify your strengths and weaknesses on the topics above. The unit 1, 2, 3, 4, and 6 tests contain content that will be on the final.

Ecology Practice Test

Click HERE for the practice test for Unit 6 - Ecology!

Ecology Quiz 6.1 Review

1. Take the practice quiz by clicking here. 

For each question, select the best answer.

When you click "Continue" the next page will tell you the correct answer. If you get the question correct, move on with the next question on the quiz. If you get the question wrong, make a quiz correction on your worksheet (the same way we do for regular quiz and test corrections).

2. Practice writing a C-E-R by clicking here. 

Practice writing a C-E-R by choosing one of the examples on the practice quiz.

3. If you finish the practice quiz and the corrections before class is over, practice the vocabulary and quiz yourself on this quizlet website. 

Go to Test or to Space Race to practice your fluency.

Natural Selection Simulation

Step 1: Start the Natural Selection Simulation 
1. For each page you visit during the simulation, make sure you write down the information on your lab worksheet.
2. When the simulation is done, you may start it again and create new birds and habitats to see how your results change.

Period 4 Exit Ticket click here

Period 5 Exit Ticket click here

Period 7 Exit Ticket click here

Period 8 Exit Ticket click here

Unit 4 Quiz 1 Review Day

STEP 1
Check your answers for each quiz using the links below. Fill out

Quiz 1: DNA Structure

Record your data for Ms. Hiatt and record your answers online
Quiz 1: DNA Structure

Quiz 2: Cell Division (General)

Record your data for Ms. Hiatt and record your answers online
Quiz 2: Cell Division

Quiz 3: Mitosis and Meiosis

Record your data for Ms. Hiatt and record your answers online
Quiz 3: Mitosis and Meiosis

Quiz 4: Sexual and Asexual Reproduction

Record your data for Ms. Hiatt and record your answers online
Quiz 4: Sexual and Asexual Reproduction

STEP 2
Choose the 2 quizzes you did the worst on.
Using your packet, go through the online activities and answer the questions as you go. When you are finished with one worksheet, show Ms. Hiatt to receive credit. Then move on to your second worksheet.

Quiz 1 and 2: DNA Structure and Cell Division
Go to http://learn.genetics.utah.edu/content/molecules/ and follow the instructions on the DNA Structure and Cell Division worksheet

Quiz 3 Mitosis and Meiosis
Go to http://www.pbs.org/wgbh/nova/miracle/divi_flash.html and follow the instructions on the Mitosis and Meiosis worksheet

Quiz 4 Sexual and Asexual Reproduction
Start on the website http://www.pbslearningmedia.org/resource/midlit10.sci.splrepro/reproduction-one-goal-two-methods/ and follow the instructions on the worksheet

Once you have completed the first half of the worksheet, go to http://learn.genetics.utah.edu/content/variation/reproduction/ to finish the second half of the Sexual and Asexual Reproduction worksheet

Sexual Reproduction In Flowering Plants | Fertilization

Fertilization (Conception)

Breeding habits of Horseshoe Crabs - Insect Worlds - Episode 3 Preview -...

Mouth-brooding | Cichlids of Lake Malawi Ep6

BBC Planet Earth - Birds of Paradise mating dance

Fungal Reproduction

Bacterial Conjugation

japanese koi spawning

Blue Planet: Coral Sea: GBR - Coral Spawning

Planting Strawberry Runners, Propagating Strawberries the easy way.

Copperhead Virgin Birth at Zoo Atlanta!

Life & Regeneration of a Planarian

Binary Fission [HD Animation]

Plant Reproduction: Asexual Reproduction

Moss Reproduction

The Asexual Reproduction of the Hydra

Beekeeping: New Honey Bee Queen Mating Flight Video

The beauty of pollination

The Sperm Struggle is Real

BBC Who Knew Slugs Could Be So Romantic

Budding Yeast - Time-lapse