
Unit 2.1 Review
Authored by Stephanie Brushway
Chemistry
7th Grade
NGSS covered
Used 18+ times

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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The smallest particle of matter is
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elements are
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two or more atoms that bond together are
An element
A molecule
Always a solid
One big atom
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A chemical reaction occurs when
A new substance is formed
Matter is created
Atoms are added to the matter
All of these
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
True or False - A molecule can be made up of only the same types of atoms.
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A molecule is________
Tags
NGSS.MS-PS1-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Law of conservation of matter states that
matter is created
matter is destroyed
matter is neither created nor destroyed
matter does not ever change
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