
7th Science Final
Quiz
•
Science
•
7th Grade
•
Hard
+2
Standards-aligned
Mary Fincher
FREE Resource
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40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Anh measured the temperature of a pond near his house. Before he left for school, the water in the pond was 18°C. When he came home from school, the temperature of the pond was higher than it was in the morning. What happened to the water molecules while he was at school?
The molecules got closer together.
The molecules started moving faster.
The water lost cold molecules.
The molecules became larger.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Scientists digging in a cave found an unknown substance. The scientists found that the substance’s molecules were moving around each other. The scientists increased the speed of the substance’s molecules and caused a phase change. How did the scientists do this, and how did this affect the substance?
The scientists transferred energy INTO the substance, and the substance changed into a gas.
The scientists transferred energy INTO the substance, and the substance changed into a liquid.
The scientists transferred energy OUT OF the substance, and the substance changed into a solid.
The scientists transferred energy OUT OF the substance, and the substance changed into a liquid.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Of the following, which is the best description of the freedom of movement in liquids?
molecules only move in place, not around each other
molecules move around, not away from each other
molecules move away from each other
molecules are charged and move away from each other
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a lot of energy is added INTO a liquid substance, but the substance does not change phase, that means ...
the molecular attraction was stronger than the amount of energy transferred in
the molecular attraction of a substance changed
the molecular attraction was weaker than the amount of energy transferred in
different substances can have weaker or stronger molecular attraction
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement is true about the molecule model shown?
Model B represents a solid with the most thermal and kinetic energy.
Model C represents a gas with the most thermal and kinetic energy.
Model A represents a solid with the least thermal and kinetic energy.
Model B represents a liquid with a medium amount of thermal and kinetic energy.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a substance goes from a liquid to a solid, it is ...
melting
freezing
evaporating
condensing
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a pull between two molecules that is always the same for a substance
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