Grade 8 Science Exam Study Guide
Unit A-E A- Mix and Flow of Matter B- Cells and Systems C- Light and Optics D- Mechanical Systems E- Fresh and Salt Water Systems
- 1.Unit A If you tried to compress a solid, liquid and a gas, ____________ would be the easiest to compress.
- A.
Solid
- B.
Liquid
- C.
Gas
- 2.Hazard Symbol: Yellow Triangle
- A.
Danger
- B.
Caution
- C.
Warning
- 3.Hazard Symbol: Orange Diamond
- A.
Warning
- B.
Danger
- C.
Caution
- 4.Hazard Symbol: Red Octagon
- A.
Warning
- B.
Caution
- C.
Danger
- 5.Define: Fluid
- A.
Anyhing that has no fixed shape and can flow
- B.
Anything that has a fixed shape and can flow
- C.
Anything that can flow
- 6.____________ & ____________ are forms of matter that will take the shape of their container
- A.
Solid & Gas
- B.
Liquid & Solid
- C.
Liquid & Gas
- 7.Define: Slurry
- A.
A mixture of gas and liquid
- B.
A mixture of liquid and solids
- C.
A mixture of solids and gas
- 8.Define: Pure Substance
- A.
Looks like one substance but more
- B.
More than one type of substance
- C.
Made up of one type of substance
- 9.Define: Mechanical Mixture
- A.
Made up of one type of substance
- B.
Made up of more than one type of substance
- C.
Looks like one type of substance but more
- 10.Define: Solution
- A.
Looks like one type of substance but more
- B.
More than one type of substance
- C.
Made up of one type of substance
- 11.Define: Colliod
- A.
Homogeneous Mixture
- B.
Cloudy Mixture
- C.
Heterogeneous Mixture
- 12.Define: Solute
- A.
The substance doing the dissolving
- B.
The substance being dissolved
- 13.Define: Solvent
- A.
The substance doing the dissolving
- B.
The substance being dissolved
- 14.The four main parts of the particle model matter are....
- A.
All matter is made up of tiny particles They never move They have space between them They are attracted to each other
- B.
They are always moving They have space between them They can bounce off each other
- C.
All matter is made up of tiny particles They are always moving They have space between them They have space between them
- 15.Particles move the slowest in a ____________ and quickest in a ____________
- A.
Slowest in a liquid, Quickest in a Solid
- B.
Slowest in a Gas, Quickest in a liquid
- C.
Slowest in a Solid, Quickest in a Gas
- 16.Heating a material will ___________ particle motion
- A.
Increase
- B.
Decrease
- 17.Define: Viscosity
- A.
A Solid's internal resistance
- B.
A Liquid's internal resistance
- C.
A Gas's internal resistance
- 18.As temperature ____________ viscosity ___________
- A.
Increases viscosity Decreases
- B.
Decreases viscosity equals
- 19.Define: Buoyant Force
- A.
Tendancy of an object to float
- B.
Force acting on an object upward in a fluid
- C.
When a diver floats suspended in water
- 20.Define: Buoyancy
- A.
When a diver is suspended in water
- B.
A force acting on a object upward in a fluid
- C.
Tendancy of an object to float when placed in a fluid
- 21.Define: ___________ is when a diver is suspended in water when the force of gravity equals the buoyant force
- A.
Neutral Buoyancy
- B.
Buoyancy
- C.
Buoyant force
- 22.An object will sink when....
- A.
Gravity is less than the buoyant force
- B.
Gravity is greater than the buoyant force
- 23.Define: Plimsoll Line
- A.
Where a ship is to be loaded
- B.
How heavy a ship is to be loaded
- C.
Where a ship is to be stopped
- 24.The "Bends" occurs when.....
- A.
A diver accesends to quickly in the ocean
- B.
A diver rises to quickly in the ocean
- 25.Unit B When a loud noise makes you jump, this is an example of a _________ _________
- A.
Loud Noise :D
- B.
Nervous System
- C.
Stimulus Response
Questions: 20 | Attempts: 58190 | Last updated: Jul 7, 2021
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Sample QuestionSquirrel monkey is a type of __________?
Questions: 13 | Attempts: 54108 | Last updated: Sep 8, 2020
-
Sample QuestionHow did the dinosaurs die out?
Questions: 10 | Attempts: 30180 | Last updated: Sep 16, 2020
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Sample QuestionWhy a man sitting in a moving bus suddenly moves forward when the bus suddenly stops?
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