Chemistry Final Review
Authored by Jessica Gehman
Science
7th Grade
NGSS covered
Used 2+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes a solid?
Has a definite shape and volume due to closely packed molecules.
Has a definite volume but takes the shape of its container.
Lacks a definite shape or volume; molecules are widely spaced.
Changes shape and volume randomly.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the process called when a gas turns into a liquid, releasing energy?
Freezing
Condensation
Melting
Boiling
Tags
NGSS.MS-PS1-4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement correctly explains the difference between water and steam?
Steam is water in solid form with tightly packed molecules.
Steam is water in gas form with spread-out molecules and higher energy.
Steam is water in liquid form with less energy.
Steam is water in liquid form with more tightly packed molecules.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a crystalline structure?
A random arrangement of atoms in solids.
A specific arrangement of atoms in solids that gives them a defined shape and structure.
The arrangement of molecules in gases.
The arrangement of molecules in liquids.
Tags
NGSS.MS-PS1-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a physical change?
Burning wood
Rusting iron
Melting ice
Baking a cake
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student observes dew forming on grass in the morning. Which phase change is occurring, and what is happening to the energy of the molecules?
Condensation; energy is released as gas turns into liquid.
Freezing; energy is absorbed as liquid turns into solid.
Melting; energy is absorbed as solid turns into liquid.
Boiling; energy is released as liquid turns into gas.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
NGSS.MS-PS3-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes a physical change?
A change that alters the chemical composition of a substance.
A change that creates a new substance.
A change that does not alter the chemical composition of a substance.
A change that only occurs in gases.
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