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WorksheetsDaily Exam I Primary 3 Science
Total questions: 55
Worksheet time: 1hrs 22mins
How do gases move?
They flow into any container.
They keep their shape and are rigid.
They vibrate and move freely at high speeds.
Is sand a solid, liquid or gas?
Solid
Liquid
Gas
Water is solid
True or false: Can you squish solids into a smaller space?
True
False
True or false: Gases can be compressed or squeezed into a smaller space
True
False
Which of the following statements is the most accurate description of gas?
Gas has a packed shape.
Gas cannot change shape.
Gas has a definite shape.
Gas spreads out to fill a space.
Ice cubes are the ___ form of water.
Frozen
Solid
Chilled
None
Does liquid have one solid shape?
no
yes
maybe
What is the physical state of milk?
Solid
Liquid
Gas
What is a pencil made of?
Wood
Lead
Plastic
Metal
When you heat water, it transforms into a _________.
Steam
Ice
Water vapor
When an ice cube melts, it transforms into...
A liquid
A gas
A solid
A plasma
Which of the following would cause liquid water to change to a solid?
Warming
Heating
Freezing
Dripping
Which mixture can easily be separated by hand-picking.
The science teacher accidentally combined metal shavings with sand, what method can be used to separate the mixture?
sieving
magnetic-separation
hand-picking
If you had a mixture of rocks and sand and needed to separate them what method would work best?
hand-picking
sieving
magnetic-separation
You have a glass of sand and water, what is the best method to separate the sand out of the water?
sieving
filtration
magnetic separation
True or False: A mixture must have at least two different materials.
True
False
What is this method of separation?
Hand picking
Sieving
Filtration
Magnetic separation
What is this method of separation?
Hand picking
Sieving
Filtration
Magnetic separation
What equipment do we need when using sieving method?
A sieve
A magnet
A filter paper & a funnel
No tool needed
What equipment do we need when using filtration method?
A sieve
A magnet
A filter paper & a funnel
No tool needed
What equipment do we need when using magnetic separation method?
A sieve
A magnet
A filter paper & a funnel
No tool needed
Why do you use sieving method to separate rock from sand?
Because rock is big solid and sand is small solid. Sand goes through the sieve and rock stays.
Because rock is small solid and sand is big solid. Rock goes through the sieve and sand stays.
Which of the following mixtures can be separated using a magnet?
sand and salt
sand and iron filings
sugar and water
What are the three states of matter?
Solid, liquid, and gas
Solid, liquid, and shape
Shape, size, and state
Liquids...
...don't have a definitive shape, but have a definitive volume
...have a definitive shape and don't have a definitive volume
We use this process to change water from a liquid to a gas
freezing
melting
evaporating
There are different ways of separating mixtures. Which method is commonly used to separate solids from liquids?
...sieving
...filtering
...evaporating
What mixture could you use this tool to best separate that mixture?
Sugar and Salt
Sand and rocks
Apples and grapes
Given a mixture of soil and roots, which substance will go through the holes of the sieve?
roots
both soil and roots
soil
What do you call a combination of two or more materials that can be physically separated?
Mixture
Materials
Chemical reaction
Matter
What is the combination of the following substances?
solid + solid
solid + liquid
gas + gas
liquid + gas
The following are the methods how to separate solid from solid, EXCEPT ________.
sieving
filtration
sorting
magnetism
How can we separate this mixture in a super cool way?
filtration
sieving
sorting
magnetism
The following is the ways how to separate mixture of solid and liquid, EXCEPT _____.
filtration
sieving
decantation
sorting
The metal ore is heated and melted to separate the metal. This is called (a)
Water
cooking oil
carbon dioxide
natural gas
Petrol
sand
Almunium
plastic
which equipment would you use to separate these mixtures?
sieve
magnet
funnel and filter paper
What things can be dissolved?
What things can be dissolved?
salt
sand
black pepper powder
Which of the following is true?
Salt dissolves in water.
Salt does not dissolve in water.
Is it true that sand dissolves in water?
Yes
No
What happened to the object in this image?
it disappeared
it transformed into a liquid
it changed into a gas
it dissolved
What does dissolving mean?
Sinking to the bottom
Floating to the top
Breaking into tiny pieces you can't see
Evaporating
What happens when sugar dissolves in water until it becomes too small to see? Is it:
Soluble
Insoluble
Ore is the rock that is found in ______
ground
soil
underground
What is the name of the ore that produces iron metal?
Bauxite
Hematite
Magnesite
What is the property of sand when mixed with oil?
It dissolves in the oil
It does not dissolve in the oil
What is the process called to extract a pure metal from its ore?
Disintegration
Smelting
Separation
What is the result of burning fuel excessively?
Increased oxygen levels
More water
Higher carbon dioxide levels
