Grade 3 Science Worksheet (Age 8) — Plants, Animals & Natural Things | 50 Qs per Topic

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Instructions

Read the notes and questions in each section carefully. Try your best to answer everything. Good luck!

Part 1: Plants - Our Green Friends

Let's Learn! Plants are living things that are very important for our planet. They give us oxygen to breathe, food to eat, and wood for building things.

Types of Plants

Plant Type Description Example
Trees Very big and tall plants with a thick, woody stem called a trunk. Mango, Oak
Shrubs Smaller than trees with many woody stems. Rose, Hibiscus
Herbs Small plants with soft, green stems. Mint, Coriander
Climbers Plants with weak stems that need support to grow upwards. Money Plant, Pea Plant
Creepers Plants with weak stems that grow along the ground. Pumpkin, Watermelon

A. Fill in the blanks with the correct word from the box.

roots     stem     leaves     oxygen     food
  1. The _________ hold the plant firmly in the soil.
  2. The _________ carries water from the roots to the rest of the plant.
  3. The green _________ make food for the plant using sunlight.
  4. Plants make their own _________.
  5. We get _________ from plants, which we need to breathe.

B. Match the Plant Type to its Description. Write the correct letter in the blank.

  1. Tree _____
  2. Shrub _____
  3. Herb _____
  4. Climber _____
  5. Creeper _____

A. A small plant with a soft stem, like mint.

B. Has a weak stem and grows along the ground.

C. A big, tall plant with a woody trunk.

D. Needs support to grow upwards.

E. A bushy plant with many woody stems, like a rose.

C. Are these sentences about special plants True or False?

  1. A cactus plant has sharp spines and grows in the desert. __________
  2. A lotus is a land plant that grows on mountains. __________

Part 2: Awesome Animals

Let's Learn! The world is full of different kinds of animals. They live in different places and eat different things.

Animal Groups

Group Main Feature Example
Mammals Have hair or fur and give birth to live babies. Dog, Whale, Human
Birds Have feathers and wings, and most can fly. Sparrow, Penguin
Fish Live in water and breathe through gills. Goldfish, Shark
Reptiles Have dry, scaly skin. Snake, Turtle
Insects Have six legs and a body in three parts. Ant, Butterfly

A. Match the Animal to its Group. Write the correct letter in the blank.

  1. Lion _____
  2. Parrot _____
  3. Lizard _____
  4. Clownfish _____
  5. Bee _____

A. Fish

B. Insect

C. Reptile

D. Mammal

E. Bird

B. Fill in the blanks using words from the box.

Carnivore     Herbivore     Omnivore     Gills
  1. An animal that eats only plants is a __________.
  2. A lion eats other animals, so it is a __________.
  3. A bear eats both plants and animals, so it is an __________.
  4. Fish use __________ to breathe in water.

C. Are these sentences True or False?

  1. All birds can fly. __________
  2. A frog is a reptile. __________
  3. A dolphin is a mammal that lives in water. __________
  4. All insects have eight legs. __________

Part 3: Natural or Man-Made?

Let's Learn! Things around us can be natural or man-made.

Type Description Examples
Natural Things Things that are not made by people. They can be living (like a cat) or non-living (like a rock). Sun, river, trees, animals
Man-Made Things Things that are made by people. Car, book, house, computer

Look at the items below. In the first blank, write 'N' if it is Natural or 'M' if it is Man-Made. If it is Natural, write 'L' for Living or 'NL' for Non-Living in the second blank.

  1. Sun: _____, _____
  2. Chair: _____
  3. River: _____, _____
  4. Dog: _____, _____
  5. Book: _____
  6. Mountain: _____, _____
  7. Pencil: _____
  8. Tree: _____, _____
  9. Car: _____
  10. Moon: _____, _____
  11. Cloud: _____, _____
  12. Fish: _____, _____

Part 4: Treasures of the Earth

Let's Learn! The ground we walk on is made of rocks and soil. Rocks are hard, non-living natural things. Minerals are the building blocks of rocks. We use rocks and minerals to make many things.

A. Unscramble the words to find important natural things.

  1. KROC -> _______________
  2. TREAW -> _______________
  3. LISO -> _______________
  4. RIA -> _______________

B. Circle the correct answer.

  1. Which of these is a hard, natural, non-living thing found on Earth?

    (A) Tree     (B) Rock     (C) Bird

  2. What do we call the top layer of Earth where plants grow?

    (A) Sky     (B) Water     (C) Soil

  3. Which mineral is used to make glass?

    (A) Quartz     (B) Gold     (C) Marble

  4. The Taj Mahal is a famous building made of white __________.

    (A) Granite     (B) Sandstone     (C) Marble

  5. Which of these is NOT a natural thing?

    (A) River     (B) Plastic Bottle     (C) Mountain

C. Fill in the blanks.

  1. The hard, solid parts of the Earth are made of __________.
  2. We use __________ to build houses and roads.
  3. Diamonds and gold are valuable __________.
  4. __________ is a very important natural resource we drink to survive.


Answer Key

Part 1: Plants - Our Green Friends

A. Fill in the blanks

  1. roots
  2. stem
  3. leaves
  4. food
  5. oxygen

B. Matching

  1. C
  2. E
  3. A
  4. D
  5. B

C. True or False

  1. True
  2. False (It is a water plant.)

Part 2: Awesome Animals

A. Matching

  1. D
  2. E
  3. C
  4. A
  5. B

B. Fill in the blanks

  1. Herbivore
  2. Carnivore
  3. Omnivore
  4. Gills

C. True or False

  1. False (Penguins and ostriches are birds that do not fly.)
  2. False (A frog is an amphibian.)
  3. True
  4. False (Insects have six legs.)

Part 3: Natural or Man-Made?

  1. N, NL
  2. M
  3. N, NL
  4. N, L
  5. M
  6. N, NL
  7. M
  8. N, L
  9. M
  10. N, NL
  11. N, NL
  12. N, L

Part 4: Treasures of the Earth

A. Unscramble

  1. ROCK
  2. WATER
  3. SOIL
  4. AIR

B. Circle the correct answer

  1. (B) Rock
  2. (C) Soil
  3. (A) Quartz
  4. (C) Marble
  5. (B) Plastic Bottle

C. Fill in the blanks

  1. rocks
  2. rocks / stones
  3. minerals
  4. Water
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