S2 Earth's Materials

What colour is neutral on the pH scale?

• blue

• green

• orange

• red

On the pH scale, 1-6 shows

7 on the pH scale is

8-14 on the pH scale shows

What is the name given to a reaction where the right amount of acid and alkali are added together to get a pH of 7?

• neutralisation

• acidification

• alkalification

Where are ores found?

• floating in water

• drifting in space

• within the Earth's crust

• in the atmosphere

Where are the metals?

• all over the periodic table

• in group 1 only

• left of the zig zag stair

• right of the zig zag stair

Which group contains one non-metal element?

• Group 1

• Group 2

• Transition Metals

• Rare Earth Metals

Name the light blue elements in the middle of the table.

• Group 1

• Group 2

• Transition Metals

• Rare Earth Metals

Name the gas produced when reactive metals are added to hydrochloric acid?

• oxygen

• helium

• carbon dioxide

• hydrogen