Can I Make New Stuff Out of Old Stuff? IQWST 7 Grade Unit 1 Test

Quiz
•
Science
•
7th Grade
•
Hard
+2
Standards-aligned
Victoria Parks
Used 33+ times
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which of the following is an example of a chemical reaction?
mixing lemonade powder with water
burning marshmallows over a fire
boiling water on a stove
Tags
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A chemical reaction occurs when substances interact and their atoms _____.
disappear.
become new atoms.
rearrange.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A student finds two green powders that look the same. He wants to figure out if the two powders are the same or different substances. Which of the following is the best method to use?
Combine both green powders and see if there is a chemical reaction.
Mix the two green powders together and then test the properties.
Determine the density, solubility, and melting point of each powder and compare.
Tags
NGSS.MS-PS1-2
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What does this diagram best represent?
substance
mixture
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
If a cup of water is sealed and kept at a constant temperature, then what is true about the motion of the water molecules?
The molecules keep moving at the same average speed.
The molecules slow down and eventually stop moving.
The molecules are not moving if the cup is sitting still.
Tags
NGSS.MS-PS1-4
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which of the following is always true when a substance undergoes a phase change?
The substance becomes a liquid as it heats up.
The melting point of the substance changes.
The substance is made up of the same type of molecules.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
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