Grade 4 Science Quiz
A medium-level Grade 4 science quiz about planets, plants, animals, growth, food chains, and living things.
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Quiz Questions & Answers
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Question 1: Which planet is closest to the Sun?
Venus
Earth
Mars
Mercury
Question 2: Why do plants need sunlight?
To change into animals
To stop growing
To make their own food
To move around
Question 3: Which part of a plant usually absorbs water from the soil?
Leaves
Flowers
Seeds
Roots
Question 4: Which animal group includes birds, fish, and mammals?
Plants
Insects
Fungi
Vertebrates
Question 5: What do herbivores eat?
Water
Rocks
Only meat
Plants
Question 6: Which is a producer in a food chain?
A snake
A lion
A green plant
A mushroom
Question 7: What happens when a seed gets water, air, and warmth?
It becomes a rock
It turns into soil
It stops changing forever
It germinates
Question 8: Which of these is a shrub?
Grass
Rose bush
Mango tree
Pumpkin vine
Question 9: What makes a tree different from a shrub?
A tree has one main trunk
A tree only grows underground
A tree always eats meat
A tree has no leaves
Question 10: Which animal is an insect?
Frog
Shark
Butterfly
Dog
Question 11: Why do some animals hibernate?
To grow leaves
To become plants
To save energy in cold weather
To learn new songs
Question 12: Which planet do we live on?
Saturn
Earth
Jupiter
Mars
Question 13: What do plants release during photosynthesis?
Smoke
Salt
Oxygen
Plastic
Question 14: Which food chain order is correct?
Fox, grass, rabbit
Grass, fox, rabbit
Rabbit, fox, grass
Grass, rabbit, fox
Question 15: Which part of a plant makes seeds?
Stem
Flower
Branch
Root
Question 16: What is the main job of a stem?
To turn into soil
To support the plant and carry water
To digest meat
To make the plant walk
Question 17: Which of these is a herb?
Mango
Oak
Cactus
Mint
Question 18: Why do predators hunt other animals?
To get food and energy
To make sunlight
To become plants
To grow roots
Question 19: What do we call animals that eat both plants and meat?
Producers
Carnivores
Omnivores
Herbivores
Question 20: Which planet has rings that are easy to see?
Saturn
Earth
Venus
Mercury
Question 21: What happens to the energy in a food chain as you move along it?
It disappears instantly
It only stays in plants
It is passed from one living thing to another
It turns into sunlight
Question 22: Which part of a plant is usually green and makes food?
Leaves
Roots
Seed coat
Fruit skin
Question 23: Why are trees important to animals?
They stop all rain forever
They make animals grow wings
They turn animals into fish
They give shelter and food
Question 24: What is one sign that a living thing is growing?
It stops needing water
It becomes bigger or changes over time
It turns into a toy
It loses all energy forever
Question 25: What does a mammal feed its babies with?
Air
Sand
Leaves
Milk