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WorksheetsUnit 2 Science Review
Total questions: 27
Worksheet time: 23mins
Which is a chemical change?
Freezing
Melting
Rusting
Cutting
Which is an example of a different substance being formed?
glass breaking
metal melting
water freezing
wood burning
Boiling Water
Physical Change
Chemical Change
Bending metal
Physical Change
Chemical Change
Nail Rusting
Physical Change
Chemical Change
A chemical change is a change in
an item's properties such as size, shape, density
an item that creates a new substance, releases light or heat
an item's sound
an item's look or state of matter
A physical change is a change
in an item's properties like its shape, size or density.
that creates a new substance or emits light or heat
that creates a smell
that cannot be undone
Which are signs that a chemical change has taken place? Select all that apply
change in mass
formation of a gas
formation of a mixture
change in temperature
Baking soda and vinegar combined to make carbon dioxide is an example of a _______ change.
Physical
Chemical
Chemical changes are
reversible
irreversible
interchangeable
non-interchangeable
Is this an example of a physical or chemical change?
physical
chemical
A mixture where one substance dissolved in another.
mixture
property
density
solution
As a whole, this bowl of chicken noodle soup would generally be considered a
mixture
solution
Which of the following would make sugar dissolve faster in a cup of water?
Add cold water and stir.
Let water evaporate away.
Add warm water and stir
Add more sugar and stir.
Mixtures CANNOT be separated.
True
False
Which process would you use to separate a solid that has dissolved in a liquid solution. The solution is heated or left uncovered until the liquid turns to gas and leave the solid behind.
Evaporation
Magnetic Attraction
Filtration
Floatation
Sifting
When mixing two substances, bubbles start to form. This is a sign of a (a) change.
Folding paper is an example of a (a) change.
Making lemonade is an example of a (a) .
Raisins, nuts, and dried fruit for a snack is an example of a (a) .
When an ice cube melts, it is a (a) change.
Fizzing and Bubbles is an example of a _____________.
Physical Change
Chemical Change
Physical Property
Mixture and Solution
How are mixtures and solutions different?
