How does food provide by body with Energy-End of Unit

Which one is not considered a food?

• Carbohydrates

• Water

• Proteins

• Fats

Food has chemical energy. If you burn it, it turns into

• potential and kinetic energy.

• kinetic and light energy.

• thermal and light energy.

• thermal and kinetic energy.

Why do fats give off twice as much energy as carbohydrates and protein?

• Fats are greasier

• Fats are bigger

• Fats have more atoms

• Fats are unhealthy

Fats, Carbohydrates and Proteins are composed of __________, __________, and ____________ molecules.

• Red, blue and green

• strong, weak and neutral

• Carbon, Nitrogen and Oxygen

• Carbon, Hydrogen and Oxygen

Food molecules stored in our bodies are used for growth and ____________.

• repair

• respiration

• photosynthesis

• reproduction

We store energy every time we eat.

• True

• False

Photosynthesis is

• The process of breathing in oxygen and exhaling carbon dioxide

• The movement of air from a low pressure to a high pressure

• The process of converting kinetic energy to thermal energy

• The process of converting light energy to chemical energy to make food.

Sunlight + _______ +water-->Glucose + Oxygen

• sugar

• soil

• oxygen

• carbon dioxide

Which is not a reason why plants need soil?

• Plants need soil to maintain their structure.

• Plants need soil to get nutrients.

• Plants need soil to eat eat and grow

• Plants need soil so their roots can absorb water in the soil.

During photosynthesis plants turn light energy into ____________ energy.

• Chemical

• Thermal

• Potential

• Kinetic