Unit 2: Matter and Energy

Which of the following is NOT an agent of decay?

• insects

• mold

• heat

• bacteria

Nitrogen is the most abundant element in the Earth's atmosphere.

• True

• False

The image to the right shows Joseph Priestly's experiments with mice and mint plants. What element was discovered that plants produce?

• oxygen

• carbon dioxide

• nitrogen

• carbon monoxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What type of energy is stored within and object or its chemical structure?

• nuclear

• thermal

• kinetic

• potential

Tags

NGSS.MS-PS3-2

Kinetic energy only exists in motion.

• True

• False

Tags

NGSS.MS-PS3-1

What type of electromagnetic radiation is produced by the sun and is damaging to living tissue?

• radio

• ultraviolet

• infrared

• x rays

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Yellow and green are the only wavelengths absorbed by plants.

• True

• False

Tags

NGSS.MS-LS1-6

In any healthy ecosystem, you will find more high level consumers than producers.

• True

• False

Tags

NGSS.MS-LS2-3

6CO₂+6H₂O≻C₆H₁₂O₆+6O₂ is the equation for which process?

• cellular respiration

• photosynthesis

Tags

NGSS.MS-LS1-6

Which subatomic particle is positively charged and determines and elements chemical identity?

• protons

• neutrons

• electrons