STAAR Science

Quiz
•
Science
•
8th Grade
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
You know that a chemical reaction is occurring here because you see __________________ . (Pick 3)
purple color
smoke
ice formation
fire
a yellow precipitate
Tags
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
We know that there was a chemical reaction occurring when 2 clear liquids were mixed together. That is because we show the production of a _____________.
solid.
precipitate.
gas.
Tags
NGSS.MS-PS1-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What vocabulary word completes the missing box in the table?
electron cloud
nucleus
atom
electron
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What can you do to find the number of neutrons in an atom?
It's the same as the atomic #.
Ask Sierra!
Subtract the atomic # (protons) from the mass # (protons and neutrons)
Multiply the mass # (protons and neutrons) and the atomic # (protons)
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Valence Electrons of Argon
5
6
7
8
Tags
NGSS.HS-PS1-1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
True or False: Atoms that have a valence electrons of less than eight are not stable.
true
false
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many valence electrons are found in atoms of group 14?
4
3
14
16
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