States of Matter
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Properties of Solids, Liquids, and Gases
SubtopicProperties of Solids, Liquids, and Gases under States of Matter for Grade 3 IB.
Preview questions (no answers)
- 1.
Everything we can touch or weigh in the world is made of:
A.Only liquids
B.Matter
C.Only gases
D.Shadows
- 2.
Which of these can be poured from a bottle into a cup?
A.A book
B.Lemonade
C.A chair
D.An eraser
- 3.
Why does a rock not change its shape when you put it inside a round bowl?
A.Because it is a liquid
B.Because it is a gas
C.Because it is a solid
D.Because it is melting
- 4.
If you look at the air around you, you usually cannot see it. This is a common property of which state of matter?
A.Solid
B.Liquid
C.Gas
D.Ice
- 5.
If you leave a piece of chocolate in a hot car, it changes from a solid to a liquid. If you then put it in the fridge, it becomes a solid again. This shows that:
A.Chocolate is always a liquid
B.States of matter can change back and forth depending on temperature
C.The chocolate was destroyed by the heat
D.The mass of the chocolate increased in the fridge
- 6.
What is the primary difference between a liquid and a gas regarding their volume?
A.Liquids have no volume, but gases do
B.Liquids have a fixed volume, but gases expand to fill any volume
C.Gases have a fixed volume, but liquids do not
D.Both have the same fixed volume regardless of the container
- 7.
When we say 'matter,' what are we referring to?
A.Only things that we can see with our eyes
B.Anything that has mass and takes up space
C.Only the things that are alive
D.The heat and light coming from the sun
- 8.
Which state of matter has the strongest 'bonds' or forces of attraction holding its particles together?
A.Gas
B.Liquid
C.Solid
D.They all have the same strength of attraction
- 9.
Why do liquids form a 'level' surface when at rest in a container?
A.The particles are locked in a flat grid
B.Gravity pulls the particles down, and they slide over each other to fill the lowest possible space
C.The particles are trying to escape into the air
D.Liquids are not affected by gravity
- 10.
Which of the following is an example of a gas turning directly into a solid without becoming a liquid first?
A.Rain falling from a cloud
B.Snow forming in the atmosphere
C.Dew forming on the grass
D.Ice melting in a drink
Download the worksheet for States of Matter - Properties of Solids, Liquids, and Gases to practice offline. It includes additional chapter-level practice questions.
Physical Changes in Matter
SubtopicPhysical Changes in Matter under States of Matter for Grade 3 IB.
Preview questions (no answers)
- 1.
Mixing sand and seashells together in a bucket at the beach is...
A.A chemical change
B.A physical mixture
C.A change of state
D.An evaporation process
- 2.
Tearing a piece of cloth in half to make a bandage is a physical change because...
A.The cloth is still the same material
B.The cloth turned into a liquid
C.The cloth changed into a gas
D.The cloth became a different color
- 3.
Grating a large block of cheese into small shreds for a pizza is an example of...
A.Freezing
B.Evaporation
C.Condensation
D.A physical change
- 4.
If you press a round ball of clay into a flat pancake, you have changed its...
A.Weight
B.Color
C.Shape
D.Mass
- 5.
In a physical change like folding paper or melting ice, what remains the same?
A.The physical state (solid/liquid/gas)
B.The shape of the object
C.The type of matter the object is made of
D.The temperature of the object
- 6.
What happens to the particles of a liquid when you put it in a freezer?
A.They speed up and spread out
B.They slow down and start to lock into a fixed position
C.They grow larger in size
D.They turn into bubbles
- 7.
A piece of copper is heated until it melts into a liquid and is poured into a mold to make a coin. What happens when the copper cools?
A.It stays a liquid
B.It turns into a solid in the shape of the mold
C.It disappears into the air
D.It becomes a different metal
- 8.
What happens to the movement of particles in a piece of metal as it is cooled from to ?
A.The particles slow down and vibrate less.
B.The particles speed up and move further apart.
C.The particles stop moving completely.
D.The particles change into a different kind of atom.
- 9.
If you have a mixture of oil and water, they will eventually separate into two layers. What physical property allows this separation?
A.Density (Oil floats on water)
B.Color difference
C.The state of matter
D.Magnetism
- 10.
A student crumples a piece of paper into a ball. Why is this a physical change?
A.Only the shape and size changed, but it is still paper.
B.The paper can never be flattened out again.
C.A new substance was formed by the pressure of the hands.
D.The mass of the paper decreased because it is now smaller.
Download the worksheet for States of Matter - Physical Changes in Matter to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
A puddle disappears from the sidewalk after the sun comes out. Which state of matter did the water change into?
A.Solid
B.Liquid
C.Gas
D.Ice
- 2.
Which process turns liquid water into a solid?
A.Melting
B.Freezing
C.Evaporation
D.Condensation
- 3.
When you breathe out on a very cold winter day, you can see a 'cloud' from your mouth. What is this?
A.Your breath freezing into ice
B.Water vapor from your breath condensing into tiny liquid droplets
C.Smoke coming from your lungs
D.Snow falling from your mouth
- 4.
What would happen to the water cycle if there was no more heat from the sun?
A.It would move faster
B.It would slow down or stop
C.It would change into the Rock Cycle
D.It would rain more
- 5.
The water cycle moves water around Earth by changing its state of matter. When liquid water from the ocean evaporates into the atmosphere, which of the following best describes how the water particles change?
A.They move slower and clump closer together
B.They move faster and spread further apart
C.They stop moving and form a fixed solid shape
D.They get smaller until they disappear completely
- 6.
What is the freezing point of water in the Celsius scale ()?
A.B.C.D. - 7.
Which process is the opposite of evaporation?
A.Melting
B.Condensation
C.Precipitation
D.Collection
- 8.
Why do we feel 'sticky' on a day with high humidity?
A.There is so much water vapor in the air that our sweat cannot evaporate easily.
B.The air is full of liquid water that is sticking to our skin.
C.The sun is melting our skin.
D.The clouds are touching the ground and making us wet.
- 9.
Which of the following describes the process of 'percolation'?
A.The way water moves through the filter of a coffee machine.
B.The movement of water downward through the tiny spaces in soil and rock.
C.The way water turns into clouds.
D.The way rivers flow into the ocean.
- 10.
How does the 'state' of water change when frost forms on a car window on a freezing night?
A.Liquid water on the window turns into a gas.
B.Water vapor in the air turns directly into solid ice crystals.
C.Solid ice on the window melts into liquid water.
D.Gas in the air turns into liquid water droplets.
Download the worksheet for States of Matter - The Water Cycle to practice offline. It includes additional chapter-level practice questions.
Reversible and Irreversible Changes
SubtopicReversible and Irreversible Changes under States of Matter for Grade 3 IB.
Preview questions (no answers)
- 1.
A chef melts solid butter in a warm pan until it becomes a liquid. Then, the chef takes that liquid butter and places it into a cold refrigerator. Based on the process shown in the diagram, what state of matter will the butter be in at the 'Result' step?
A.Gas
B.Solid
C.Liquid
D.Vapor
- 2.
What do we call a change that cannot be undone to get the original materials back?
A.A reversible change
B.An irreversible change
C.A physical change
D.A freezing change
- 3.
Which of these items would melt the fastest if placed in a warm room?
A.A metal spoon
B.A wooden block
C.An ice cream cone
D.A glass marble
- 4.
When a candle is lit, the solid wax near the flame turns into a liquid. If you blow the candle out, what happens to that liquid wax?
A.It turns back into solid wax
B.It evaporates completely
C.It turns into ash
D.It stays liquid forever
- 5.
Which of these kitchen tasks involves a reversible change?
A.Melting chocolate chips to make a sauce
B.Baking a tray of blueberry muffins
C.Frying a piece of chicken in a pan
D.Toasting a marshmallow over a fire
- 6.
A student leaves a wet towel hanging outside on a sunny day. Later, the towel is dry. Which statement best explains this change?
A.The liquid water turned into an invisible gas called water vapor
B.The water was destroyed by the heat of the sun
C.The towel soaked up all the water until it was gone
D.The water turned into a solid and fell off the towel
- 7.
When a person eats a piece of fruit, their body breaks it down to get energy. Why is digestion an irreversible change?
A.The fruit is changed into different substances the body can use
B.The fruit only changed its size inside the stomach
C.The fruit can be put back together easily
D.The fruit stays exactly the same inside the body
- 8.
A student is looking for an example of a change that is reversible but requires a very long time. Which of these fits best?
A.The formation of rust on a car.
B.The melting of a large glacier during the summer.
C.The baking of a large wedding cake.
D.The burning of a giant log in a fireplace.
- 9.
Imagine you have a solid piece of iron. You heat it up until it turns into a red liquid. Then, you pour it into a mold and let it cool until it is solid again. Which statement is true?
A.The iron underwent an irreversible change because it was red.
B.The iron underwent a reversible change of state.
C.The iron is now a new substance because it was melted.
D.The iron cannot be melted a second time.
- 10.
Which of these changes is irreversible because it involves a biological process of decay?
A.An ice cream cone melting in the sun.
B.A pile of leaves turning into compost in a garden.
C.A piece of chocolate breaking into smaller bits.
D.A puddle of water drying up after a rainstorm.
Download the worksheet for States of Matter - Reversible and Irreversible Changes to practice offline. It includes additional chapter-level practice questions.