Cambridge Intl Science - Stage 6 - Unit 2 - Materials

Match the keyword to the correct defintion

• Electrical conductor

• The temperature at which a liquid changes to a gas

• Thermal conductor

• A substance or material that allows electricity to pass through it easily

• Dissolving

• A substance or material that allows heat to pass through it easily

• Melting point

• When a substance completely mixes into another substance, and it look likes it disappears.

• Boiling point

• The temperature at which a solid changes to a liquid

Tags

NGSS.MS-PS1-4

Which liquid boils at the lowest temperature?

• Water

• Cooking oil

• Nail varnish remover

• Car anti-freeze

Identify the image which shows boiling

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Identify the image which shows evaporation.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Which of the following is a similarity between both evaporation and boiling of water.

• They both occur at 100C

• They both occur at any temperature greater than 0C

• They both change a liquid to a gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following are true about evaporation and boiling.

• Evaporation occurs at any temperature

• Boiling only occurs at a certain temperature for example water only boils at 100C

• They both change a liquid to a gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Evidence that a substance is boiling.

One way in which we can identify that a substance is boiling is that it produces ​ (a)   .

• bubbles
• steam
• ice
• vapor

Tags

NGSS.MS-PS1-4

Using information from the table, order the following substances from lowest to highest boiling point.

• Sodium Chloride

• Water

• Sucrose

• Oxygen

• Mercury

Organise the following substances into two group: Good thermal conductors and poor thermal conductors.

Groups:

(a) Good Thermal conductors

,

(b) Poor thermal conductors

• Silver

• Wood

• Plastic

• Copper

• Metal

• Paper

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Plugs are made from plastic, because plastic is a ​ (a)   electrical conductor, which means that you will not be ​ (b)   when you touch the plug.

• poor
• electrocuted
• excellent
• good