8th grade science review

Where are earthquakes most likely to occur?

• In the middle of plates
• In the oceans
• Along plate boundaries
• Anywhere on the Earth

Why does the Earth orbit the Sun and not a planet in the solar system?

• The Sun is more massive than the planets so it's mass causes the gravitational pull.
• It just happened that way.
• The Earth pulls the Sun toward it  because it is so massive.
• The Earth is closer than the other planets so the distance causes the gravitational pull.

Some objects like the Sun produce their own light.  Others don't.  Why can we see objects that don't produce light?

• They absorb the light.
• They reflect the light.
• They transmit the light.
• They bounce the light around until it strikes our eyes.

Some resources are renewable and will not run out.  Some are finite and can't be renewed.  Which of these resources is non-renewable?

• solar
• hydroelectric
• wind
• oil

Suppose you find fossils of dinosaurs on an island but no fossils of bird or mammal fossils found on the continent it broke off from  This information provides evidence of _________________.

• global warming
• seafloor spreading
• mountain building
• continental drift

Which technology would be useful for studying moon phases

• Spectroscope
• Space Probe
• Telescope
• The international Space Station

In order to be an index fossil the fossil must

• exist for a short period of time over a large area.
• exist for a long period of time over a small area.
• exist in spotty areas around the world.
• exist, die out,  and come back into existence.

How do folded mountains form?

• They form when plate boundaries diverge.

• They form on the continent side of convergent boundaries.

• They form when plates collide or push against each other.

• They can form several different ways.

            are observations from which a
conclusion can be drawn.

• Predictions
• Inventions
• Data
• Discoveries 

Which statement about opinions is
true?

• They are personal beliefs.
• They are a valuable tool used by
  scientists.
• They are supported by evidence.
• They can be used to help write
  a hypothesis.