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Vocabulary Focus

A Match the words with their meanings.

1. metabolism a. a natural substance such as iron
or salt

2. nutrient b. the chemical process in your body
that changes food into energy

3. survive c. a chemical or food that helps
living things live and grow

4. mineral d. to continue to live

B Choose the correct words to fill in the blanks.

nutrients sun solar metabolism

1. Living things grow and change with the help of energy.

2. Without energy from the , no life would exist.

3. Living things undergo .

4. Plants need air, water, , sunlight, and space to grow.

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