Can Humans Live Without Plants?

Can Humans Live Without Plants?

Agenda:

New CER Tracker

Today - Claim and Reasoning

Objective: Students will examine their previous learning to answer the question "can humans live without plants". Students will communicate their findings on the CER under the claim and reasoning sections.

Poll

Can humans live without plants on the planet?

• Yes

• No

Open Ended

State your claim in a full sentence. "Humans can/cannot live without plants"

Poll

Which one comes first (cause)?

• Humans

• Trees

Poll

What is the effect (result) we can see?

• Trees

• Humans

Photosynthesis Review

• Where does the carbon come from?

• What does the tree do with the carbon?

• What are the products of photosynthesis?

Multiple Choice

What does the tree DO with the carbon? What is it used for?

• Turns it into oxygen

• Stomata take in carbon dioxide

• Stores it as mass

Multiple Choice

Where does the carbon come from?

• Soil (nutrients in the ground)

• Air (Gas in our atomsphere)

• Water (from the rain)

• Sunlight

Multiple Choice

What are the products of photosynthesis?

• Oxygen and Carbohydrates (sugar)

• Carbon dioxide and water

• Soil and decomposition

• The green color of leaves

Open Ended

What benefits do humans get from oxygen and carbohydrates (sugar)?

Plants give us Oxygen!

• Plants are THE source for oxygen

• Without plants we wouldn't be able to breathe

• 
  

Plants give us food!

• We eat plants!

• Simple sugar - Honey and white sugar

• Starch - Potatoes, flour, corn, carrots

• Cellulose (fiber) - Salad, celery, fruits

Plants feed our other food sources!

• Cows, chicken, pigs - All eat plants

• Think about our food web - The sun is the energy source for plants. The plants are the energy source for animals

Multiple Choice

Do humans need plants to live?

• Yes

• No

Claim and Reasoning

• Do humans need plants to live? (claim)

• Why do humans need plants to live? (2 reasons) "humans need plants to live because..."