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WorksheetsGL QUIZ 2 SCIENCE GRADE 3
Total questions: 38
Worksheet time: 19mins
Peter goes to the duck pond with his grandad and his dog.
Tick TWO boxes to show two things that are true about a dog and a duck.
a. They both have fur.
b. They both move.
c. They both lay eggs.
d. They both breathe.
What do birds, bats and butterflies have in common?
A. feathers
B. hair
C. internal skeleton
D. wings
Which of these animals has a young form that looks the most like the adult form?
A. moth
B. human
C. frog
D. butterfly
Most birds sit on their eggs until they hatch. Which of these is the most important reason why birds sit on their eggs?
A. to keep the eggs inside the nest
B. to keep the eggs warm
C. to protect the eggs from the wind
D. to protect the eggs from the rain
Polar bears and walruses look very different, but both can survive in the extreme cold. A polar bear has a thick coat of fur that helps keep it warm. The walrus has no fur. What does the walrus have that helps it keep warm?
A. fat layers
B. tusks
C. whiskers
D. flippers
Calcium is a mineral that helps make your bones and teeth strong. Which of these foods is the best source of calcium?
A. candy
B. rice
C. cheese
D. meat
A predator is an animal that feeds on other animals. Which of these is a predator?
A. deer
B. wolf
C. cow
D. goat
Describe a human activities that can lead to the extinction of animals.
a. hunting.
b. cleaning the environment.
c. conservation of forest.
Plants use energy directly from the Sun. What do they use the energy from the Sun for?
A. to make food
B. to disperse seeds
C. to fertilize the soil
D. to prevent insect damage
Which predator–prey relationship is correct?
A. fish (predator)–seal (prey)
B. green algae (predator)–krill (prey)
C. fish (predator)–krill (prey)
D. seal (predator)–killer whale (prey)
Why are many desert animals more active at night?
A. It is drier at night.
B. It is cooler at night.
C. There is less danger at night.
D. There is less wind at night.
A metal spoon and a wooden spoon are used to stir a pot of hot soup. After a few minutes, the metal spoon feels hotter than the wooden spoon. What explains this?
A. Metal is always hotter than wood.
B. Metal conducts heat better than wood.
C. Metal conducts electricity better than wood.
D. Metal heats up the water better than the wood.
A hot, boiled egg is put into a cup of cold water. What happens to the temperature of the water and the egg?
A. The water gets colder and the egg gets warmer.
B. The water gets warmer and the egg gets colder.
C. The water temperature stays the same and the egg gets colder.
D. Both the water and the egg get warmer.
What causes an object to fall to the ground when you let it drop from your hand?
A. magnetism
B. gravity
C. air resistance
D. the push from your hand
Which of these is a mixture?
A. salt water
B. sugar
C. water vapor
D. salt
Which two objects produce their own light?
A. candle and moon
B. moon and mirror
C. Sun and candle
D. mirror and Sun
Water, ice, and steam all have different temperatures. What is the order from coldest to hottest?
A. ice, water, steam
B. ice, steam, water
C. steam, ice, water
D. steam, water, ice
What is the correct explanation for why we have day and night on Earth?
A. The Sun orbits around the Earth.
B. Earth orbits around the Sun.
C. Earth turns on its axis.
D. The Sun turns on its axis
Plants grow best in soils that are rich in which of the following?
A. grains of sand
B. lumps of clay
C. layers of gravel
D. decaying plants and animals
Which of these soil changes is due only to natural causes?
A. Loss of minerals due to farming.
B. Deserts forming due to tree cutting.
C. Flooding due to dam construction.
D. Minerals washing out due to heavy rain.
Water that has its salt removed before it can be used as drinking water is most likely to have come from
A. underground
B. a river
C. a lake
D. a sea
Which of the following can provide the human body with long-term immunity against some diseases?
A. antibiotics
B. vitamins
C. vaccines
D. red blood cells
which of these seasons will you see a rainbow more often?
Summer
Monsoon
Winter
Which of these grows from a seed?
a. ant.
b. donkey
c. grass.
The Moon produces no light, and yet it shines at night. Why is this?
A. The Moon reflects the light from the Sun.
B. The Moon rotates at a very high speed.
C. The Moon is covered with a thin layer of ice.
D. The Moon has many craters.
Which one of these refers only to living things?
A. clouds, fire, rivers
B. fire, rivers, trees
C. rivers, birds, trees
D. birds, trees, worms
John kept some seeds on moist cotton in a dish. Mike put the same kind of seeds in a dish beside John’s dish, and covered them with water. After two days, John’s seeds sprouted, but Mike’s did not. Which is the most likely reason?
A. Mike’s seeds needed more air.
B. Mike’s seeds needed more light.
C. Mike did not put the dish in a warm enough place.
D. Mike should have used a different kind of seed.
Which animal produces milk for its young?
A. Chicken
B. Frog
C. Monkey
D. Snake
Birds are different from insects in that birds have ____
A. wings
B. legs
C. feathers
D. eggs
Seeds develop from which part of a plant?
Flower
Leaf
Root
Stem
What is the BEST reason for including fruits and leafy vegetables in a healthy diet?
A. They have a high water content.
B. They are the best source of protein.
C. They are rich in minerals and vitamins
D. They are the best source of carbohydrates.
What is the MOST important reason for people to use a sunscreen when they are outside in sunlight?
A. It protects the skin against dangerous rays from the sun.
B. It makes the skin more tanned.
C. It makes the skin smooth.
D. It makes the skin feel cooler.
Which one of these groups contains only animals with a backbone (vertebrates)?
Earthworm, snake, crayfish
Spider, clam, dragonfly
Crayfish, snake, horse
Horse, snake, fish
Which travels fastest?
train
airplane
light
sound
Some things were buried in wet ground. Several years later they were dug up. Which thing is MOST likely to have stayed the same?
A. An egg shell
B. A plastic cup
C. A paper plate
D. An orange peel
Which makes its own light?
candle fire
mirror
diamond ring
To find out whether seeds grow better in the light or dark, you could put some seeds on pieces of damp paper and
A. keep them in a warm, dark place
B. keep one group in a light place and another in a dark place
C. keep them in a warm, light place
D. put them in a light or dark place that is cool
Some children were trying to find out which of three light bulbs was brightest. Which one of these gives the best START toward finding the answer?
A. “One bulb looks brightest to me, so I already know the answer.”
B. “All the bulbs look bright to me, so there cannot be an answer.”
C. “It would help if we had a way to measure the brightness of a light bulb.”
D. “We can take a vote and each person will vote for the bulb he or she thinks is the brightest.”
