Gas Exchange and Assessment Questions

The video tutorial guides students through a flex day science assignment involving the carbon dioxide and oxygen cycle. It includes a warm-up activity using the Gizmo Plants and Snails tool, where students set up experiments with test tubes to observe gas changes. The tutorial provides detailed instructions for conducting the experiment, analyzing results, and completing activities and assessment questions.

What is the essential gas that humans take in when they breathe?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Hydrogen

Why don't we run out of the gases necessary for life?

• Because they are stored in the ocean

• Because of the constant supply from the atmosphere

• Due to the process of photosynthesis by producers

• Due to human intervention

What should your Gizmo platform password be?

• Your student ID

• Gizmos

• 12345

• Your name

What color does the test tube with the plant turn after 24 hours?

• Yellow

• Green

• Blue

• Red

Which gas is most common when the water in the test tube turns blue?

• Nitrogen

• Hydrogen

• Oxygen

• Carbon Dioxide

What does it indicate when the water in the test tube turns yellow?

• High levels of oxygen

• High levels of carbon dioxide

• No gas present

• Equal levels of gases

What do equal levels of oxygen and carbon dioxide in the test tube indicate?

• The water is green

• The water is yellow

• The water is clear

• The water is blue

How many assessment questions are there in Part D?

• Three

• Six

• Four

• Five

What should you do before attempting the assessment questions?

• Complete activities A, B, and C

• Log out of Gizmo

• Submit your handout

• Review the video tutorial

How many points is each assessment question worth?

• One

• Four

• Two

• Three