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WorksheetsGrade 4 Science & Physics Quiz
Total questions: 58
Worksheet time: 2hrs 52mins
An ecosystem is made up of ________.
plants only
animals only
living and non-living things interacting
humans only
Which ecosystem can be considered very small?
A rainforest
An ocean
A puddle of water
A country
Which of the following is abiotic?
Grass
Bird
Water
Bacteria
Which is a biotic component?
Sunlight
Temperature
Soil
Fungi
What do we call the role of an organism in its environment?
Habitat
Niche
Population
Ecosystem
Why can’t two organisms stay in the same niche for a long time?
They will become friends
One will move faster
They will compete for resources
They will grow plants
What is the first source of energy in most food chains?
Animals
Plants
The sun
Soil
Why are plants called producers?
They eat animals
They break down dead organisms
They make their own food
They move energy
Animals are called consumers because they ________.
make food
eat other organisms
use sunlight
decompose plants
Which organism helps break down dead plants and animals?
Lion
Grass
Mushroom
Eagle
What do arrows in a food chain show?
The size of animals
The direction of energy
The habitat
The speed of animals
A food web is ________.
one straight food chain
a group of overlapping food chains
only plants
only animals
Which animal is an herbivore?
Lion
Snake
Rabbit
Eagle
Which animal is an omnivore?
Cow
Tiger
Human
Snake
An apex predator is an animal that ________.
eats plants only
is always small
has no natural predators
lives underground
An ecosystem can be as large as the Earth.
Abiotic components are living things.
Plants need sunlight to make food.
Decomposers are harmful to ecosystems.
Energy flows from food to the eater.
A food web is simpler than a food chain.
Herbivores eat both plants and animals.
Mutualism is a relationship where both benefit.
Deforestation can destroy animal habitats.
Speed tells how fast something is moving.
Producer
Consumer
Decomposer
Herbivore
Carnivore
(a)
Omnivore
Apex Predator
Food Web
Plants get their energy from the (a) .
Living things in an ecosystem are called (a) components.
Non-living things are called (a) components.
An organism’s role in its environment is its (a) .
(a) help recycle nutrients back into the soil.
Throwing waste into rivers causes water (a) .
Cutting down many trees is called (a) .
(a) tells how fast an object moves.
To calculate speed, we need __________ and __________.
distance
time
What is symbiosis?
What kind of symbiosis is shown when both organisms benefit?
In the clownfish and sea anemone relationship, who benefits?
Why is mutualism important in nature?
Planting trees __________
Burning fossil fuels __________
Recycling waste __________
Deforestation __________
Protecting animals __________
Polluting rivers __________
A girl walks 10 meters in 5 seconds. Speed = __________ m/s
A dog runs 30 meters in 6 seconds. Speed = __________ m/s
A bike travels 40 km in 4 hours. Speed = __________ km/h
What is the formula for speed?
What does average speed mean?
Give one unit used to measure speed.
