Revision Worksheet
Science Final Exam
Name : ………………………………………. Grade 3 : ……………………..
A Reminder
The required material:
What Are Some Physical Properties?
What Are the States of Matter?
What Are Some Changes to Matter?
What Are Simple Machines?
What Are Some Physical Properties?
matter anything that takes up space
physical property a characteristic of matter that you can observe or measure directly.
You can observe the color, texture, and shape of something. So these are examples of physical properties.
mass the amount of matter an object hasMass, matter, and more begin with the same sound. The more matter an object has, the more mass it has.
volume the amount of space an object takes up.
temperature the measure of how warm something is.
What Are the States of Matter?
solid : matter that takes up a definite amount of space and has a definite shape
A solid has a set size and shape.
liquid: matter that takes up a definite amount of space, but does not have a definite shape
A liquid lacks its own shape. It takes the shape of its container.
gas: matter that does not take up a definite amount of space, and does not have a definite shape.
Evaporation : what happens when a liquid changes to a gas.
Evaporation has the word vapor in it. Evaporation takes place when liquid water changes to water vapor, a gas.
Condensation: when happens when a gas changes to a liquid.
Condensation and cool begin with the same sound. Condensation happens when water vapor cools.
*Water boils and becomes a gas at 100º Celsius, which 212º Fahrenheit.
What Are Some Changes to Matter?
physical change : a change in matter in which the kind of matter stays the same
Matter has physical properties, such as color, size, shape, and mass. A physical change is a change in a physical property.
Soaking,shredding, and crumpling paper are physical changes because they change the physical properties of the paper. They do not change the paper into something new.
mixture: two or more substances that are combined without changing any of them
things together.
solution: a mixture in which all the substances are easily mixed.
dissolve: completely mix one substance in another
chemical change: a change in matter that results in a new kind of matter.
Chemical and create begin with the same sound. A chemicalchange creates a new kind of matter. A cooked apple does not have the same properties as a raw apple, so it is a new kind of matter.
What Are Simple Machines?
work : the use of a force—a push or a pull—to move an object
simple machine : a tool to do work that has no or few moving parts.
lever : a simple machine made up of a bar that pivots, or turns, on a fixed point.
fulcrum : the fixed point on which a lever pivots.
wheel-and-axle : a simple machine made up of a wheel and an axle that are connected so they turn together.
pulley : a simple machine made up of a wheel with a rope, cord, or chain around it.
Wheel and axle
Q1 :Circle the physical properties of matter.
Mass Solid Color Liquid
VolumeTemperature Ice
Q2 : Match
Condensation Liquid water does not have to boil to become a gas.
Evaporation A gas can change back to a liquid .
Solid is matter does not have a definite shape .
Liquid is matter has a definite shape .
Q3 : Draw three state of water and write the name for each one .
………………………….. ………………………….. ……………………………..
Q4: Circle the correct Answer
1-What will happen to the water when the air temperature drops to 0 °C?
It will begin to boil. / A.It will begin to melt. / B.
It will begin to freeze. / C.
It will begin to evaporate. / D.
2 - This thermometer shows the temperature outside. Read the thermometer.
- 59F
- 10C
- 20C
- 80F
Sort these objects to whether they are solid liquids or gases :
Tea / Juice / Balloon / Box / Water / Car / bubbles / Air / PencilSolid / Liquid / Gas
Write some examples about physical and chemical changes .
Physical change Chemical change
…………………………. ………………………………
Write physical change or chemical change .
Breaking ………….. Cutting …………..
Burning …………….. Melting ………….
Rusting …………….. Cooking ………….
Q :complete the sentence with the correct word :
1-………………… is anything that takes up space.
2- A …………………………………is the amount of space takes upby matter.
3 - New kinds of matter is formed during ………………… .
4 - A state of matter which we breath ………………
5- When you use force to move object, you are doing …………….. .
Draw a simple machine :
Write the definition .
1 – Physical change : ………………………………………………………………………………………
2 – Chemical change : ……………………………………………………………………………………..
3 – Condensation : ………………………………………………………………………………………….
4- Evaporation : ………………………………………………………………………………………………..