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

What kind of rocks are intrusive and extrusive?

Igneous

100

What is the law that describes layers and fossil distribution?

law of superposition

100

What are the three types of rocks called?

Igneous, Sedimentary, and Metamorphic

100

the sun is a star that appears _______ and brighter than other stars because it is _______.

Larger, closer

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/Erosion ?

300

Burning a piece of wood is an example of this type of reaction: 

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

300

Newly introduced species can do what to a ecosystem?

Make it unbalanced, throw off functions 

300

Name the 2 types of Tides

Spring and neap 

300

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

Pangea (puzzle pieces, fossil appearances, plate tectonics) Earthquakes, Tsunami's 

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. 

What is decomposition?

400

What is the process called where plants give water to the atmosphere.

transpiration

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

What are the stages of the water cycle?

Evaporation, condensation, precipitation, runoff

500

Solve this equation (on white board) 

answer 1,5,3,4

500

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

Producers (plants)

500

Name the 5 different types of fossils 

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

500

What are the criteria's for living? list 2

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

500

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

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