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WorksheetsQuizizz 8
Total questions: 46
Worksheet time: 29mins
Four substances were mixed with a clear liquid. The observations are recorded in the table shown below. Based on the observations, which mixture produced the best evidence that a new substance was formed?
Substance 1
Substance 2
Substance 3
Substance 4
Two items are combined inside a balloon. The balloon is tied shut. What observation would indicate that mixing the chemical produced a gas?
The balloon can hold a liquid.
The balloon increases in volume.
The balloon becomes cold.
The balloon was tied shut.
Two clear substances are combined inside a plastic bag. The plastic bag is tightly sealed. What observation would indicate that mixing the chemical produced a new substance?
The substance in the bag becomes warm.
The bag is transparent.
The substances are clear.
The bag can hold a liquid.
Ice cubes are placed on a table in a warm room. What happens to the ice particles?
The particles become larger.
The particles change shape.
The particles move faster.
The particles change color.
After a rainstorm, a group of students notices puddles on the sidewalk. Later that afternoon, the students observe a change in the puddles.
What caused the water in the puddle to disappear?
Shadows covered the sidewalk.
The Sun’s heat turned the water to a gas.
The rainstorms continued all day.
The liquid water changed into ice.
What is physical change?
How two chemicals react with one another when combined
A property that we can measure or observe with our 5 senses or other tools
When two chemicals react with one another to form a new substance
When a change occurs but it does not result in the formation of a new substance
When you increase the energy by heating a liquid what happens to the motion of the molecules
They slow down
They speed up
Heat doesnt change the motion of the molecules
What do we call the molecules that are present at the end of a chemical reaction?
Reactants
Products
Ingredients
Atoms
Thermal energy (heat) is released or absorbed during the reaction explains the _________________
Change in color
Change in temperature
Change in gas
What does the picture represent ?
physical change
chemical change
A physical change...
changes the physical properties of an object, but does not create a new substance.
creates a new substance and cannot be undone.
A chemical change
changes the physical properties of an object, but does not create a new substance.
creates a new substance and cannot be undone.
Is this an example of a physical or chemical change?
physical
chemical
Is this an example of a physical or chemical change?
physical
chemical
Is this an example of a physical or chemical change?
physical
chemical
Is this an example of a physical or chemical change?
physical
chemical
Is this an example of a physical or chemical change?
physical
chemical
Is this an example of a physical or chemical change?
physical
chemical
Is this an example of a physical or chemical change?
physical
chemical
Wood that is burning in a brush pile has heat, and produces ashes.
Physical
Chemical
Is milk going sour a physical or chemical change?
Physical
Chemical
Which is an example of a chemical change?
Which is an example of a chemical change?
Which is an example of a physical change?
Cutting a tree limb into logs is (a)____________ and burning them in the fireplace is (b)____________.
(a) A Physical Change
(b) Also a Physical Change
(a) A Physical Change
(b) A Chemical Change
(a) A Chemical Change
(b) Also a Chemical Change
(a) A Chemical Change
(b) A Physical Change
This is a __________ change.
Physical
Metaphysical
Chemical
Logical
This is a _________ change.
Magical
Chemical
Physical
Seussical
A white tablet is dropped into water. The water becomes cloudy and bubbles are produced. What type of change has occurred?
Physical change
Chemical change
No change
Are these particles in a solid, liquid, or gas?
Solid
Liquid
Gas
Are these particles in a solid, liquid, or gas?
Solid
Liquid
Gas
Are these particles in a solid, liquid, or gas?
Solid
Liquid
Gas
