🔬 Science · Matter & Materials
Earth's Atmosphere & CO2
Describe the composition of Earth's atmosphere (mainly nitrogen and oxygen, with small amounts of CO₂ and other gases), explain how human activity increases CO₂, and describe the impact on global climate
Typical age: 12–14 years
“If your child was asked why scientists are worried about CO₂ levels rising, could they explain what CO₂ does in the atmosphere, why human activities produce more of it, and what effects it's having on the planet?”
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