Chemistry Middle School
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6. Different liquids have different freezing points mainly because
a) Freezers are at different temperatures
b) Some winters are colder than others
c) The less liquid you use, the faster it freezes
d) Molecules of different liquids have a different amount of attraction
Tags
NGSS.MS-PS1-4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If two objects have the same volume but one has a greater mass, the one with greater mass
Has a lower density
Has a higher density
Will float
Will sink
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An object should float in a liquid if it is
More dense than the liquid
Less dense than the liquid
Lighter than metal
Shaped like a ball
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Protons are located in the nucleus of the atom. A proton has
No charge
A negative charge
A positive and a negative charge
A positive charge
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
12. Neutrons are in the nucleus of the atom. A neutron has
a) A positive charge
b) No charge
c) A negative charge
d) Twice as much positive charge as a proton
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An electron is in a region outside the nucleus. An electron
Is larger than a proton and has no charge
Has less mass than a proton and has a negative charge
Is smaller than a proton and has no charge
Has a positive charge
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The atomic number of nitrogen is 7. The atomic mass is 14.01. This means that
All nitrogen atoms have exactly 7 neutrons.
A small percentage of nitrogen atoms have fewer than 7 neutrons
A small percentage of nitrogen atoms have more than 7 neutrons
Some nitrogen atoms have fewer than 7 electrons
Tags
NGSS.MS-PS1-1
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