1) Earth has just the right _____ for plants and animals to thrive. a) fossil fuels b) temperature c) pollution d) change 2) A greenhouse is a building with _____ walls and _____ roof. a) stone b) metal c) glass d) gas 3) A greenhouse keeps plants _____ by trapping the sunlight, even at night and in the winter. a) cold b) fresh c) dry d) warm 4) Earth is surrounded by a jacket of gases called the _____ . a) fuels b) atmosphere c) climate d) greenhouse 5) After the Sun goes down, the Earth's surface _____ . a) cools b) warms up c) stays the same d) dries 6) Carbon dioxide, water vapor and methane are all examples of _____ . a) climate change b) fossil fuels c) greenhouse gases d) atmosphere 7) Burning _____ like coals and oil, releases more carbon dioxide into our atmosphere. a) greenhouse gases b) atmosphere c) fossil fuels d) pollutions 8) The extra greenhouse gases can cause the Earth to _____ . a) heat up b) trap c) cool down d) temperature

Greenhouse Effect

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