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3 cards from this section. Quick, good the night before a test.
What percentage of the atmosphere is made up of oxygen?
Think about the air we breathe.
Is oxygen essential for combustion?
Remember how fire needs air to burn.
What is the percentage of oxygen in the atmosphere?
It's a key component needed for life.
True or False: Oxygen can burn on its own.
What happens when you put fire in a closed jar with no air?
Analyze the role of oxygen in both biological processes and combustion reactions. What are the similarities and differences?
Think of how organisms take in oxygen and how fire behaves.
Evaluate the implications of ozone layer depletion. What effects does this have on living organisms and ecosystems?
Consider how increased UV affects health and the environment.
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