
Grade 8 Science Final Exam Study Questions and Answers
Quiz
•
Social Studies
•
8th Grade
•
Hard
Jolene Korethoski
FREE Resource
73 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is Particle Theory?
All matter is made of tiny moving particles with spaces between them that attract each other.
It is the idea that all matter is made of continuous, unbroken substances.
It states that matter is made only of energy and not particles.
It is the theory that particles are stationary and do not move.
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is a solvent and a solute?
A solvent dissolves things (like water); a solute is what gets dissolved (like sugar).
A solvent is always a solid; a solute is always a liquid.
A solute dissolves things (like water); a solvent is what gets dissolved (like sugar).
A solvent and a solute are both always gases.
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What are heterogeneous and homogeneous mixtures?
Heterogeneous mixtures have different visible parts (like salad); homogeneous mixtures look the same throughout (like salt water).
Heterogeneous mixtures are always gases; homogeneous mixtures are always solids.
Heterogeneous mixtures cannot be separated; homogeneous mixtures can be separated easily.
Heterogeneous mixtures are only found in nature; homogeneous mixtures are only man-made.
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is density and viscosity?
Density is how much mass is in a certain volume. Viscosity is how thick or runny a liquid is.
Density is the color of a substance. Viscosity is its temperature.
Density is how fast a liquid flows. Viscosity is how much it weighs.
Density is the shape of an object. Viscosity is its size.
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What are the steps of the scientific method?
Ask a question, make a hypothesis, experiment, observe and record, analyze data, and draw a conclusion.
State a fact, guess the result, skip experimentation, and publish findings.
Make a prediction, ignore data, draw a conclusion, and repeat the process.
Ask a question, make a guess, avoid experiments, and accept any result.
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is saturation, supersaturation, and unsaturation?
Saturated means no more solute can dissolve. Unsaturated means more can dissolve. Supersaturated means more than usual has dissolved.
Saturated means more solute can dissolve. Unsaturated means no solute can dissolve. Supersaturated means less than usual has dissolved.
Saturated means the solution is always solid. Unsaturated means the solution is always liquid. Supersaturated means the solution is always gas.
Saturated means the solution is colored. Unsaturated means the solution is colorless. Supersaturated means the solution is transparent.
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is buoyancy and how do things float?
Buoyancy is the upward force that makes things float. Objects float if they are less dense than the fluid.
Buoyancy is the downward force that makes things sink. Objects float if they are more dense than the fluid.
Buoyancy is the sideways force that moves things in water. Objects float if they are heavier than the fluid.
Buoyancy is the force that only affects gases. Objects float if they are solid.
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