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7th Grade Unit 1 Structures and Properties of Matter Post Review
Passage
•
Science
•
6th - 8th Grade
•
Practice Problem
•
Easy
Calita Zampty
Used 1+ times
FREE Resource
37 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an atom?
A small particle made of many molecules
The smallest unit of an element that retains its properties
A type of compound
A mixture of elements
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes a compound?
A substance made of only one kind of atom
A mixture of different elements not chemically bonded
A substance made of two or more different atoms chemically bonded
A gas that changes state easily
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Freezing is a change of state when thermal energy from a liquid to a...
Gas
Liquid
Solid
Plasma
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to particles when thermal energy increases?
They move slower
They stay the same
They move faster
They disappear
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When ice changes into water, what change of state is occurring?
Condensation
Freezing
Melting
Evaporation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does solubility describe?
How fast a substance melts
The ability of one substance to dissolve in another
The temperature at which a substance boils
The mass of a substance
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On the periodic table, what does the atomic number tell us?
The number of molecules in an element
The total mass of the atom
The number of protons in the nucleus
The number of electrons only
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