WorksheetsGrade 3 Science - Unit 4 Review
Total questions: 25
Worksheet time: 17mins
An organ that pushes blood around the body is called . . .
brain
stomach
heart
intestines
An organ that allow us to breathe air in and out is called . . .
brain
lungs
intestines
heart
An organ that allows us to think, move and talk is called . . .
brain
stomach
heart
lungs
Which organs that take nutrients from our food?
Lungs and intestines
Stomach and intestines
Stomach and heart
intestines and heart
Our heart is made up of . . .
skeleton
bone
muscle
fat
Blood is transported in . . .
blood vessels
muscle
stomach
Which statement is FALSE?
We take more breaths after doing an exercise.
An adult takes more breaths than a child because an adult's lungs are smaller.
When we breathe in, the chest gets bigger.
Our body needs more oxygen after doing an exercise.
We call an animal as a . . . when it's body temperature is the same temperature as the surroundings.
warm-blooded
cold-blooded
Which animal group that have these characteristics:
1. warm-blooded
2. mostly gives birth
3. breathe through lungs
4. produce milk for the youngs
Mammal
Reptile
Amphibian
Insect
What is the reproduction of Reptiles?
laying eggs
giving birth
Ants, mosquitoes, butterflies, beetles, ladybugs are in the same animal group called . . .
mammals
reptiles
insects
bird
1. Can live both on land and in water
2. Laying eggs
3. Cold-blooded
4. Body covered with moist or wet skin
Which animal group that has those characteristics?
Reptile
Amphibian
Mammal
Fish
Look at the picture that shows a life cycle of frog! We call the stages for no. 1, 2, 3 in order as . . .
tadpole - eggs - baby frog
eggs - tadpole - froglet
eggs - tadpole without legs - tadpole with legs
What is a life cycle?
The stages a living thing goes through during its life.
The stages a non-living thing goes through during its life
Life
It's a shape.
How many stages in the life of a butterfly according to this picture?
1
2
3
4
Take a look at this picture of food chain!
The direction of the arrow represents . . .
the direction of the energy flow.
who eats that animal.
the kind of carnivore
Why does each food chain start with a plant?
Because a plant is a consumer that gets its energy from the sun.
Because a plant is a producer that gets its energy from the sun.
Because a plant is a producer that gives energy to the sun.
Look at this picture of a food chain. One arrow is missing. Draw in the missing arrow! Be careful with the arrow direction.
Look at this picture of a food chain!
The fish and seal get their energy by eating other living things. We call them the . . .
Herbivores
Carnivores
Producers
Consumers
Look at this picture of a food chain!
The seaweed makes its own food using sunlight. We call the seaweed the . . .
Herbivores
Carnivores
Producers
Consumers
An impression in rocks by living things, but that it was made many years ago when the rock was mud is called ...
mineral
fossil
substance
Where did this animal live?
On land
In water
What features of the animal can you see in the fossil?
(You can thick more than one)
tail
fins
tusk
beak
feet
If a scientist found a fish fossil in the desert, what can they infer?
An animal ate the fish.
Today's fish looks the same
The water covered the area long ago.
Which statements are FALSE about the fossils?
Fossils are impressions, or remains of things that were once alive a long time ago.
There are only animal fossils.
There are other types of fossils, not only the ones which are buried under rocks deep underground.
