Test
Cycles of matter test
This 7th-grade test on cycles of matter helps students identify key processes in water, carbon, and nitrogen cycles through multiple-choice and select-all questions. It also encourages understanding of energy flow and organism roles within ecosystems.
By Edform · Science · Grade 7 · Published Oct 15, 2026 · New
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Questions
- Which process in the water cycle is responsible for changing water from a liquid to a gas?
- Select all processes that return water to the atmosphere in the water cycle.
- Energy flows through an ecosystem in one direction, while matter cycles.
- Which organism is primarily responsible for converting atmospheric nitrogen into a form plants can use?
- What is the process called when plants release water vapor into the air through their leaves?
- Which of the following are ways carbon returns to the atmosphere in the carbon cycle?
- Precipitation is the process where water vapor changes into liquid water and falls to the ground.
- What is the main source of energy that drives the water cycle?
- Name the process by which plants use sunlight to make their own food and take in carbon dioxide.
- If a plant absorbs 100 units of energy from sunlight, and only 10% is passed on to the next trophic level, how much energy is available to the next level?
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