Physical Science
Life Science
Earth Science
8th Grade Review
8th Grade Review
100

What are the three states of Matter?

What is Solid, Liquid, Gas? 
100

All living things must meet these criteria ......

 Reproduce, have cell growth, require energy (food), interact with their environment. 

100

where are the oldest fossil found?

in the deepest layer

100

What are the three types of rocks called?

Igneous, Sedimentary, and Metamorphic

100

What do you call energy from the sun?

What is Solar Energy


200

Casey is given a sample mixture containing calcium carbonate, glucose, iron filings, and silica sand. Which of the materials could be separated out with a magnet?

What are iron filings?

200

This scientific process is how plants take matter that is not food (light, air, water, and soil) and turn it in to matter that is food.

What is photosynthesis?

200

Lakes, rivers, glaciers, ground water, and polar ice caps are all examples of this.

What is  fresh water around the world. 

200

Describe a sedimentary rock.

Sedimentary rocks have different layers.

200

What is the breaking down of rocks?

What is Weathering?

300

Burning a piece of wood is an example of this type of reaction: chemical or physical.

Chemical reaction, atoms are rearranged, and the process is irreversible.

300

If you go far enough down the food chain, food of almost any kind of animal can be traced back to _____.

What is (Producers) plants?

300

Most of the Earth's water is found here.

What is the oceans?

300

Describe 2 pieces of evidence that support the theory that tectonic plates move

Earthquakes, volcanic eruptions, tsunamis, sea floor spreading.

300

The dropping off of weathered rock at the end of erosion.

What is deposition?

400

What causes Ocean water to move?

differences in its temperature and salinity (density of the water) 
400

This process eventually restores (recycles) some materials back to the soil after a plant or animal's death. Detritivores do this.

What is decomposition?

400

name 3 different types of tides

Spring, leap, neap, 

400

What is a nonrenewable resource? Give two examples.

A nonrenewable resource is a resource that cannot be replaced in our lifetime. Examples: (Fossil Fuels) Natural Gas, Coal, Oil.

400

Name the 5 different types of fossils 

Cast, mold, persevered (crystallization, amber, unaltered), carbonization, trace

500

Regardless of the type of change that occurs when heating, cooling, or mixing substances, the total weight of matter is _______.

What is conserved? (stays the same)

500

Newly introduced species can do this to the balance of an ecosystem.

What is damage it or throw it off?

500

The sun is a star that appears larger and brighter than other stars because it is _____.

What is closer to Earth than other stars?

500

What kind of rock comes from a volcano?

What is Igneous?

500

how do you identify the number of neutrons in an atom?

subtract the mass number from the atomic number. mass - protons = neutrons