Exploring Material Properties

What does it mean if a material is waterproof?

• A material is waterproof if it absorbs water easily.

• A material is waterproof if it is made of plastic only.

• A material is waterproof if it does not allow liquids to be abssorbed

• A material is waterproof if it can float on water.

Can you name a waterproof material?

• Wood

• Plastic

• Leather

• Cotton

What is an absorbent material?

• A solid that cannot absorb any liquids

• A substance that only holds gases

• An absorbent material is a substance that can soak up liquids

• A material that repels water

Give an example of something that is absorbent.

• plastic

• wood

• rock

• sponge

What does it mean for a material to be rigid?

• A material is rigid if it does not flexible

• A material is rigid if it can stretch without breaking.

• A material is rigid if it is always heavy and dense.

• A material is rigid if it can easily bend under pressure.

Can you think of a rigid object?

• spoon metal

• Rubber band

• Paper sheet

• Wooden block

What is the difference between transparent and translucent?

• Transparent materials are opaque and block all light.

• Translucent materials are completely clear and allow full visibility.

• Transparent materials scatter light and create blurred images.

• Transparent materials are clear and allow full visibility; translucent materials allow light but not clear images.

Name a transparent material.

• glass

• metal

• plastic

• wood

What does opaque mean?

• Not able to be seen through; not transparent.

• Able to be seen through; transparent.

• Partially transparent; allows some light to pass.

• Clear and easy to see through.

Can you give an example of an opaque object?

• A clear window

• A wooden table

• A glass of water

• A transparent plastic bag