2nd grade materials and their properties

Question 1

True or false? An elastic band goes back to its shape after stretching.

• A. True
• B. False

Question 2

Which of these is usually made of fabric?

• A. a saucepan
• B. a key
• C. a sock
• D. a paperclip

Question 3

Choosing materials: which statement is true?

• A. Cotton wool is good for a raincoat.
• B. A material's properties make it suitable for a job.
• C. Metal is best for a window you want to see through.
• D. Glass is a good material for a football.

Question 4

Three of these are usually made of metal. Which one is NOT?

• A. a paperclip
• B. a saucepan
• C. a bicycle frame
• D. a mirror

Question 5

True or false? Wool comes from sheep.

• A. True
• B. False

Question 6

Why are car tyres (tires) made of rubber?

• A. Rubber is flexible and grips the road
• B. Rubber absorbs water
• C. Rubber is transparent
• D. Rubber is a metal

Question 7

A model castle is made of 6 wooden blocks. Each block has a mass of 20 g. The castle is taken apart and rebuilt as a boat with all the same blocks. What is the mass of the boat?

Answer g

Question 8

Leo builds a car from 16 building bricks, then takes it apart and uses every brick to build a bridge. How many bricks are in the new model?

Answer 

Question 9

Is this material natural or human-made: concrete?

• A. natural
• B. human-made

Question 10

Which of these can be stretched and then spring back to its shape?

• A. a stone
• B. a wooden ruler
• C. an elastic band
• D. a glass marble

Question 11

A puzzle is broken up into 100 pieces and put back together. Which is TRUE?

• A. It is made of a new material.
• B. It is now heavier.
• C. It has more pieces.
• D. It has the same pieces and the same mass as before.

Question 12

A chair can be made of wood, metal or plastic. Which property must ALL chair materials have?

• A. see-through
• B. soft like a pillow
• C. stretchy
• D. strong enough to hold a person

Question 13

Which shape change is this: twisting a lid off a jar?

• A. squashing
• B. bending
• C. twisting
• D. stretching

Question 14

Where does this material come from: a woolly jumper (sweater)?

• A. the fluffy seed pods of a cotton plant
• B. wood from trees
• C. a sheep's fleece
• D. clay baked in a kiln

Question 15

Why are saucepans usually made of metal?

• A. Metal is strong and conducts heat to the food
• B. Metal is soft and bendy
• C. Metal melts on the cooker
• D. Metal is transparent

Question 16

True or false? Glass cannot be bent at room temperature without breaking.

• A. True
• B. False