science april 29 april 30. today’s agenda… we have dispersals today with mr. canosa’s class...
TRANSCRIPT
Today’s Agenda…
• We have dispersals today with Mr. Canosa’s class• You will be using a chromebook today to get your
information• You will be assigned a specific number to use in
this classroom• You will go through the powerpoint to get all
information• With 20 minutes left in class we will review all
the notes together
Today’s Agenda…
• If you do not know how to get to my wiki page WRITE THESE STEPS DOWN NOW!
• 1. Go to James Martin Middle school website• 2. Click on faculty / staff• 3. Click on Tracy Maas globe icon• 4. click on 2014-2015 lessons tab• 5. Select powerpoint for Respiration April 29 & 30
Today’s Agenda…
• Before getting your chromebook, everyone will turn their chairs around so your backs are to me
• We will do this by rows now!• Remember you are not talking today…. You
are getting the information from the wiki page and taking notes into your notebook
• We will review at the end of class
Warm Up
1. Atoms are mostly made up of:1. Calcium2. Empty space3. Cells 4. Water
2. What is the difference between mass and volume? 1. There is no difference between mass and volume. 2. Mass is the amount of space it takes up and volume is the
amount of stuff it is made of . 3. Mass is what color it is and volume is how loud it is. 4. Mass is the amount of stuff it is made of and volume is the
amount space it takes up.
Let’s check our understanding…
• Explain each concept below in your own words:• Photosynthesis• Chloroplast and chlorophyll• Leaf structure (stomata and guard cells) • Transpiration (part of water cycle)
Introduction to Cellular Respiration:
As humans, we can only hold our breath for so long…..Pinch your nose shut, and see how long you can hold your breath
• Why did you eventually have to breathe out and then in?
WRITE IN NOTEBOOK…
• We need O₂ for 2 reasons…• Respiration: Using our lungs to breathe
in oxygen and breathe out carbon dioxide
• Cellular Respiration: A chemical reaction within our cells which uses oxygen to break down stored energy from glucose
So what happens when you breathe? Write in notebook
BUT IT’S NOT THIS SIMPLE….
Oxygen (O2) goes in
Carbon dioxide (CO2) goes out
Today’s investigation!
• Today we are going to investigate how respiration (in plant and animal cells) is related to photosynthesis….
Respiration – Write in Notebook• Respiration is the process that breaks
down sugar to make energy. It happens in animal cells and plant cells.
• Cellular Respiration Equation:
Reactants (what goes in)
Oxygen + Sugar (O2) (C6H12O6)
Products (what comes out)
Water + Carbon Dioxide(H2O) (CO2)
+ ENERGY!!
Water + Carbon Dioxide(H2O) (CO2)
+ ENERGY!!
So where does all this oxygen come from??
• Remember, it is due to green plants doing PHOTOSYNTHESIS!
Write in notebook the 2 statements that are true?
1. Photosynthesis is like respiration in reverse
2. Photosynthesis produces CO23. Photosynthesis needs sunlight
Were you right? TWO statements that are true are highlighted in red
1. Photosynthesis is like respiration in reverse
2. Photosynthesis produces CO23. Photosynthesis needs sunlight
Discovery Education Videos…
• Record these questions below before watching the videos….(leave space to record your answers)
• 1. What is breathing?• 2. What is respiration?• 3. What happens to glucose in the presence of
oxygen? • 4. How are photosynthesis and cellular
respiration related?
Discovery Education…• You are going to watch 2 videos on Discovery Education• Log in to your account using the following steps:• 1. type in discovery education in a search box• 2. log in username: cms student id# _ cms
password: cms student id #• Select the Science techbook• Select the Essential Living Processes – Cellular respiration• Select the Engage tab: from here you will watch 2 videos
• Breathing vs. Respiration video• Cellular Respiration video
Video on Cellular Respiration in plants
• https://www.youtube.com/watch?v=yxHZH0P5aKI
• In lima beans if time permits
Discovery Ed Video• Follow up Questions: 1. What happens to glucose in the presence of oxygen? 2. Oxygen helps break down glucose so it can be used by
cells for energy3. How are photosynthesis and cellular respiration related? 4. They are opposite reactions; the products of
photosynthesis are the reactants of cellular respiration
Make a foldable…
• Fold your notebook paper in half (hotdog style)• Draw a line down the center fold• Label Left Side: Photosynthesis• Label Right Side: Cellular Respiration• You should have two columns in your notebook
(see the next slide)