Which of the following provides heat energy to living things?

• sun
• moon
• mars
• mercury

This is the gas that we inhale (breathe in).

• oxygen
• helium
• carbon dioxide
• neon

This is the gas that we exhale (breathe out).

• oxygen
• helium
• carbon dioxide
• neon

This is needed for living cells and tissues to work

• fire
• water
• air
• land

The sun is the source of all ________________.

• power
• food
• energy
• life

This is the hotness and coldness of a thing.

• thermostat
• freezer
• temperature
• refrigerator

Living things can...

• breathe
• reproduce
• grow
• all of the above

Where do plants get nutrients to grow?

• soil
• air
• human
• trees

Living things and nonliving things have the SAME CHARACTERISTICS

• True
• False

Humans can grow, develop and reproduce.

• True
• False