Elementary Science Department

Grade 3 – Revision

Name: ……………………….. Class: ……………………………

I. Write the letter of the best choice

_______ 1. Which body part the elephant use to help it get food?

A. its ears B. its feet C. its skin D. its trunk

_______ 2. How do insects get oxygen?

A. from the water

B. through their antennae

C. by breathing air through gills

D. through tiny holes in their bodies

_______ 3. Which animal is a reptile?

A. bear

B. bird

C. Monkey

D. Snake

_______ 4. Which is a trait of all birds?

A. They can all fly

B. They are all born with gills

C. They all hatch from eggs

_______ 5. Which animals are in the same group?

A. crocodile and snake

B. frog and worm

C. ladybug and shark

_______ 6. Which of these is not a trait of mammals?

A. have hair or fur

B. have scales

C. feed milk to their young

D. breathe with lungs

_______ 7. Assil’s sister made this table to help Assil learn about animals.

Type of animal TraitAmphibian has gills as an adultBird lives on land and under waterFish has feathersReptile has skin with scales

She told Assil that only one kind of animal is correctly paired with its trait. Which kind is this?

A. amphibian C. mammal

B. fish D. reptile

_______ 8. Omar has an animal that has moist skin, lay eggs in water, and has lungs. Which type of vertebrate is it most likely to be?

A. amphibian C. mammal

B. fish D. reptile

_______ 9. To what group of vertebrates does a whale belong?

A. amphibian C. mammal

B. fish D. reptile

_______ 10. What do fish use to help them breathe?

A. fin C. scales

B. gills D. tail

_______ 11. Which animal has no backbone?

A. C.

B. D.

_______ 12. How are insects and spiders alike?

A. They both have eight legs

B. They both are vertebrates

C. They both have an outer body covering

D. They both have two body parts

_______ 13. What do all invertebrates have in common?

A. All have lots of legs

B. All have simple body

C. None have backbones

D. None have wings

_______ 14. Which is true about insects?

A. They all have wings

B. They all have four legs

C. There are more of them than of any other kind of animal.

15.

_______ 16. A radio announcer tells you it’s sunny day and the temperature is 25˚C. What is the announcer describing?

A. the sea C. the water cycle

B. the ocean D. the weather.

_______ 17. Joudy sees white, wispy clouds high in the sky. Which type of cloud is Joudy seeing?

A. cirrus C. rain

B. cumulus D. stratus

_______ 18. What does an anemometer measure?

A. wind speed C. cloud height

B. temperature D. rainfall amount

_______ 19. Which of the following can be used to predict weather?

A. map C. rain gauge

B. microscope D. weather satellite

_______ 20. What type of cloud shown?

A.Cirrus C. stratus

B. cumulus D. Fog

_______ 21. Cherry’s mom is getting ready to cook pasta. When the water boils, which process will occur?

A. condensation C. melting

B. evaporation D. precipitation.

_______ 22. Khadija is observing as they change. What does the picture shows?

A. boiling C. freezing

B. melting D. precipitation.

_______ 23. In the water cycle, how does water move from the air to the land?

A. it falls as precipitation C. it evaporates from the sky

B. it forms as groundwater D. it forms glaciers in Antarctica

_______ 24. Which of these processes form clouds?

A. water vapor expands as it rises

B. solid water evaporates

C. Liquid water freezes

D. water vapor rises and condenses

_______ 25. What happens if the water is left to boil for a long time?

A. the water level raises C. the water changes from a solid to a gas

B. the water gets cooler D. the water changes from a liquid to a gas

_______ 26. Which form is water in when it is water vapor?

A. gas C. liquid

B. heat D. solid

_______ 2 7. The state the water is in depends on which of the following?

A. clouds C. vapor

B. temperature D. volume

_______ 28. By which process are clouds formed?

A. condensation C. melting

B. evaporation D. precipitation.

_______ 29. What does this picture shows?

A. glacier

B. groundwater

C. seasons

D. water cycle

_______30. What is needed to make electricity?

A. Magnet only

B. Coil of wire only

C. Both a magnet and a coil of wire

D. Neither a magnet nor a coil of wire

_______31. Which is not a use for magnets?

A. To make electricity

B. To make compasses

C. To separate glass from plastic

_____32. Which kind of magnet can be turned on and off?

A. B.

C. D.

_____33. Which is an example of electricity?

A. BrushB. CloudC. HairD. Lightening

______34. What kind of electricity moves through a wire?

A. CurrentB. MotorC. StaticD. Socket

______35. What makes a refrigerator’s motor do work to keep food cold?

A. Current electricityB. InsulatorC. Static electricityD. Lightning

_____36. Which material is a good conductor?

A. CopperB. WoodC. PlasticD. Insulator

______37. Material that is able to attract objects made of iron is called?

A. MagneticB. Electric C. CurrentD. Insulator

_____38. What must an object be made of to be attracted to a magnet?

A. PlasticB. RubberC. IronD. Wood

_____39. What are the ends of magnets called?

A. Attractors B. PolesC. SouthD. North

_____40.Which magnets will get attracted to each other?

_____41.What can magnets do to a piece of iron?

A. Repel it

A. B.

C. D.

B. Attract it C. Turn the iron into plasticD. Push the piece of iron away

_____42. Which of the following will be attracted to the magnet?

C. D.

_____43. What is the ruler used to measure?

A. SpeedB. DistanceC. MotionD. weight

_____44. Which two measurements are needed to find the speed of an object?

A. Force and massB. Time and speedC. Position and forceD. Time and distance

____45.In which direction is the boy throwing the plane?

A. DownB. UpC. straightD. Left

____46.Time is measured in __________

A. KilometersB. InchesC. MilesD. Hours

_____47.Which surface would cause the MOST friction?

A. Dirt.B. Ice.C. Grass.D. Rocks.

_____48.What is the thing that affects the object’s motion?

A. Volume.B. Texture.C. Mass.D. Color.

______49.Which object would take the least amount of force to move?

E. A bookF. A carG. A pencilH. A table

______50. Which object would take the most amount of force to move?

A. A bookB. A carC. A PlaneD. A table

_____51.A dog pulls a bone across the floor. The bone moves to the left. In which direction did the dog push the bone?

A. RightB. LeftC. DownD. Up

_____52. Which force always pulls the pot toward Earth?

A. FrictionB. GravityC. Magnetic forceD. Net force

II. Complete the following using the suitable shelter for each animal: Nest – under a leaf – cactus – lodge

_______________________ _______________________ _______________________

__________________________

III. Label the diagram using the words in the box:

Precipitation – condensation – evaporation

IV. Answer the following questions:

1. Mary and Salma are fighting for a doll. They are

pulling against each other with the same force.

A. What is the net force?_____________________

B. If Mary is stronger than salma who will take the

doll?_______________________

2. You are going the garden using your bike and your father is going using his car.

Your father reached the garden in 10 minutes and you took 15 minutes.

A. Who travelled more distance? _______________________

B. Who took more time? ________________________

C. Who has a greater speed?_______________________