Chem Review Sam

Quiz
•
Science
•
7th Grade
•
Hard
+2
Standards-aligned
Charles Martinez
FREE Resource
39 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
All elements and matter are composed of extremely small particles called:
Mixtures
Molecules
Atoms
Compounds
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What can you conclude from the fact that scientists continue to update the atomic model?
Scientists did not have any information about atoms until a few years ago
Old information about atoms is useless
Scientists still have no idea what atoms look like
New information about atoms continues to be discovered
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which particles in atoms have a negative electric charge?
electrons
nuclei
neutrons
protons
Tags
NGSS.MS-PS2-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an atom, the number of protons equals the number of
neutrons.
nuclei.
electrons.
isotopes.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What holds atoms together in a molecule?
Gravity
chemical bonds
density
physical bonds
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The nucleus of an atom has
neutrons and electrons
protons and neutrons
protons and electrons
all the above
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using the diagram to identify the letter that shows the proton.
a
b
c
Tags
NGSS.MS-PS1-1
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