AmbifulWorksheets
Practice that never repeats
CBSE · Class 3 · Science

This World of Things

Standard difficulty · 20 questions · 40 marks · Time: 54 minutes

Name: Date: Score: ____ / 40

Show your working for Sections B and C. Answers are on the last page — try every question first!

Section A — Choose the correct answer8 × 1 = 8 marks
1.
Things that you can see through clearly are called:
  1. translucent
  2. shiny
  3. opaque
  4. transparent
2.
A windowpane is usually made of:
  1. glass
  2. clay
  3. rubber
  4. wood
3.
Cotton cloth comes from:
  1. wet soil
  2. silkworms
  3. trees
  4. the cotton plant
4.
Through which of these can you see CLEARLY?
  1. a steel plate
  2. a paper lamp shade
  3. a clear plastic bottle
  4. a cardboard box
5.
Through which of these can you NOT see at all?
  1. a clear plastic bottle
  2. butter paper
  3. clean water in a glass
  4. a brick wall
6.
Which of these is a GAS?
  1. a brick
  2. cooking oil
  3. the air in a balloon
  4. water
7.
Which material is best for making an umbrella?
  1. wood
  2. glass
  3. waterproof cloth
  4. clay
8.
A classroom has 6 windows, and each window has 6 glass panes. How many glass panes are there?
  1. 42 panes
  2. 12 panes
  3. 36 panes
  4. 30 panes
Section B — Short answer8 × 2 = 16 marks
9.
Name three materials in your classroom and one thing made of each.
10.
What is each usually made of? (a) a cricket bat (b) a brick
11.
Is it a solid, a liquid or a gas? (a) the air in a balloon (b) water
12.
Write "natural" or "artificial": (a) a chair (b) a cloud
13.
Write "transparent", "translucent" or "opaque": (a) a wooden door (b) a paper lamp shade
14.
Each door hinge needs 6 nails. How many nails are needed for 9 hinges?
15.
A classroom has 12 tables and 26 chairs, all made of wood. How many wooden things is that?
16.
Khushi's box has 2 metal things, 5 plastic things and 4 wooden things. How many things are in the box?
Section C — Word problems4 × 4 = 16 marks
17.
Draw your classroom and label five things in it with what each is made of.
18.
A classroom has 10 desks with 2 chairs at each desk, and 4 windows with 6 glass panes each. (a) How many chairs are there? (b) How many glass panes are there?
19.
Sort these into solids, liquids and gases: a bottle, a brick, honey, smoke, cooking oil, the air in a balloon. How is a solid different from a liquid?
20.
Why would each not work? (a) a wall made of water (b) a cooking pot made of plastic
AmbifulWorksheets
Practice that never repeats
CBSE · Class 3 · Science

Answer key

This World of Things · AW-3S-THI-2026-V1 · For parents — fold back or tear off before handing the sheet to your child.

QAnswerWorking
1(d) transparent—
2(a) glass—
3(d) the cotton plant—
4(c) a clear plastic bottle—
5(d) a brick wall—
6(c) the air in a balloon—
7(c) waterproof cloth—
8(c) 36 panes6 × 6 = 36
9For example: wood (desk), metal (door hinge), glass (windowpane), plastic (switch).—
10(a) wood (b) clay—
11(a) gas (b) liquid—
12(a) artificial (b) natural—
13(a) opaque (b) translucent—
1454 nails6 × 9 = 54
1538 things12 + 26 = 38
1611 things2 + 5 + 4 = 11
17A drawing with five labelled things and their materials.—
18(a) 20 chairs (b) 24 panes10 × 2 = 20; 4 × 6 = 24
19Solids: a bottle, a brick. Liquids: honey, cooking oil. Gases: smoke, the air in a balloon. A solid keeps its shape; a liquid flows and takes the shape of its container.—
20(a) water is a liquid and cannot keep its shape (b) plastic melts on a hot stove—