Matter and Energy Sources

A possible explanation for an investigation problem is known as _____.

• theory

• hypothesis

• control

• conclusion

The center of an atom is called the ______.

• nucleus

• valence shell

• neutron

• center

Shape, color, physical state, and volume are all examples of _____.

• chemical property

• physical change

• physical property

• chemical change

Fusion and fission reactions are related to the release of _____ energy.

• solar

• nuclear

• geothermic

• wind

Petroleum contains _____.

• oxygen

• sulfur

• nitrogen

• All of them.

A factor that is changed or altered so as to observe what happens in an experiment is a:

• manipulated variable

• responding variable

• control group

• independent variable

Who formulated the heliocentric model?

• Galileo Galilei

• Nicolaus Copernicus

• Donald Trump

• Christopher Colombus

Janiel is doing an experiment with M&M's. He is noting that he has orange, red, yellow, brown and green candy. What kind of observation is that?

• invalid

• qualitative

• quantitative

What does Earth Sciences study?

• Planet Earth and the place it occupies in space.

• The universe.

• Living organisms and ecosystems.

What are some renewable energy sources?

• sun

• water

• oil

• wind