Smoke is ... (a. solid b. liquid c. gas)
Smoke is gas.
Ice is the .....................state of water.
solid
Freezing is change of matter from solid states to liquid state (T/F)
False
What do we call the temperature at which a substance boils?
Boiling point.
What do we call water when it is a gas?
Water vapour.
Milk is ... (a. solid b. liquid c. gas)
Milk is liquid.
Backpacks are ... (a. solid b. liquid c. gas)
Backpacks are solid.
Air is ... (a. solid b. liquid c. gas)
Air is gas.
Matter that takes the shape of its container and its volume cannot be changed is ..................
Liquid
Which has more mass, the green chair or the red chair?
The red chair has more mass than the green chair.
What happens to the water in a bottle if it is placed in the freezer?
Water (liquid) freezes into ice (solid)
____ have their own shape. They always occupy the same amount of space.
Solid have their own shape. They always occupy the same amount of space.
On decreasing the temperature (cooling) of water vapor, it…………….
condenses
change from liquid to gas
evaporation
Give two examples of a solid.
Any solid item.
An elastic band is .... (a. hard b. rigid c. flexible)
An elastic band is flexible.
What is the change from solid to liquid called?
Melting.
______ take the shape of the container they are in. They expand to occupy as much space as possible.
Gases take the shape of the container they are in. They expand to occupy as much space as possible.
A blackboard is ... (a. flexible b. soft c. hard)
A blackboard is hard.
Solid takes the shape of its container. (T/F)
False
Why is a pencil considered a solid matter.
Because it has definite shape and volume
Matter can change from one state to another by ....................or..................
heating or cooling
Honey has.........................volume
definite
Describe the particle model of a solid.
Particles are tightly packed in fixed positions. This makes it difficult for a solid to change shape.
What do we use to measure temperature?
A thermometer.
Pillows are ... (a. hard b. soft c. rough)
Pillows are soft.
.A change of matter from solid state to liquid by heating
Melting
What are the three states of matter?
solid, liquid, gas.
Blackboards are ... (a. solid b. liquid c. gas)
Blackboards are solid.
Liquids have definite volume. (T/F)
True
What is freezing?
When a liquid cools and it changes into a solid.
What state of matter does this picture show?
SOLID
The state of matter that can be pressed inside cylinders (.....................)
Gas
What will happen : Putting a bottle completely filled with water in the freezer .
Water freezes and expands
What state of matter does this picture show?
LIQUID
Describe the particle model of a liquid.
Particles are close together but can slide past each other and change places. This means liquids can change shape easily.
Identify the solid, liquid, and gas in the picture.
Solid: table, glass, ice. Liquid: cola. Gas: bubbles in cola.
Iron and wood are solids (T/F)
True
Fizzy drink is ... (a. solid b. liquid c. gas)
Fizzy drink is liquid.
Which has lesser volume, the blue notebook or the dark blue notebook?
The dark blue notebook has lesser volume than the blue notebook.
______ take the shape of the container they are in.
Liquids take the shape of the container they are in.
Describe the particle model of a gas.
Particles are spaced far apart. This means gas can have any shape. It can also be squashed easily.
Give an example of a gas.
Any gas.
The change of water into water vapor
Evaporation
What is boiling?
It is when liquid is heated and it changes into a gas.
Describe the phase change of an ice cube put into a hot pan.
Solid + heat = liquid and then liquid + more heat = gas.
Give two examples of a liquid.
Any liquids.
Water will change into ice by heating. (T/F)
False
What do we call the temperature at which a substance melts?
Melting point.
A change of matter from liquid state to solid state by cooling
Freezing
What is melting?
When a solid is heated and it changes into a liquid.
What do we call water when it is a solid?
Ice.
What causes melting?
Heat.
What state of matter does this picture show?
GAS