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WorksheetsChemical/Physical Changes
Total questions: 41
Worksheet time: 44mins
Physical changes include changes to the size and shape of something?
False
True
Which is an example of a physical change?
burning match
vinegar in baking soda
melting butter
cooking an egg
What is an example of a chemical change?
Ripped paper
boiled egg
cracked egg
sugar in water
What kind of change is exploding fireworks?
physical change
chemical change
What kind of change is baking a cake?
physical change
chemical change
What kind of change is freezing water into ice cubes?
physical change
chemical change
What kind of change is a rotting banana?
physical change
chemical change
What kind of change is mixing vinegar & baking soda?
physical change
chemical change
Which of the following could indicate that a chemical change took place?
Change in color
Production of Energy
Formation of Gas
All are correct
The formation of a solid when two liquids combine is called?
Solidification
Freezing
Precipitate
Solubility
Which of the following is an example of a physical change?
A glass falling and shattering on the floor.
Baking a birthday cake.
Burning a piece of paper.
Baking soda and vinegar mixing together.
When a new substance is formed with different properties than the original substance it is called a...
Chemical change
Physical change
Change in State
Change in appearance only.
During Chemical Reactions, the new substances created are called?
Precipitate
Corrosion
Reactants
Products
During Chemical Reactions, the substances that are used are called?
Precipitate
Corrosion
Reactants
Products
What energy transformation occurs during photosynthesis?
Chemical → Radiant
Thermal → Chemical
Radiant → Chemical
Mechanical → Thermal
What energy transformation occurs as a mouse produces body heat?
Chemical → Thermal
Thermal → Chemical
Electrical → Thermal
Thermal → Mechanical
What energy transformation occurs as an electric eel shocks its prey?
Electrical → Mechanical
Thermal → Electrical
Chemical → Electrical
Radiant → Electrical
What energy transformation occurs as bacteria and fungi decompose dead plant material?
Thermal → Chemical
Chemical → Thermal
Radiant → Thermal
Radiant → Chemical
What type of energy is this showing that all organisms release to the environment?
Chemical energy
Kinetic energy
Thermal energy
Solar energy
How much energy is available to be passed on to the next level in a food web?
100%
10%
50%
75%
Which type of energy is formed during the process of photosynthesis?
chemical
radiant
thermal
kinetic
Which of the following energy transformations occur when humans use energy from food to exercise?
Mechanical → thermal → chemical
Thermal → electrical → mechanical
Radiant → mechanical → thermal
Chemical → thermal → mechanical
Warm-blooded animals have the ability to shiver when they get into extreme heat deficiency. During this process, their muscles begin to move very quickly and heat is given off. What is the energy transformation that is occurring when an animal shivers?
thermal energy to chemical energy
mechanical energy to thermal energy
mechanical energy to electrical
thermal energy to mechanical energy
When an object is moving it has what type of energy?
kinetic energy
potential energy
What type of energy is referred to as stored energy?
kinetic energy
potential energy
