Science at Home

Is it acid or alkali when the pH is 4 pH

• Acid

• Alkali

• Neutral

What is the pH of distilled water?

• pH 12

• pH 3

• pH 8

• pH 7

A wasp sting is alkali. Which substance would neutralise the sting?

• Vinegar

• Bleach

• Baking soda

• Distilled water

Which pH levels indicated a strong acid?

• 1-3

• 4-6

• 8-11

• 12-14

Which pH level indicates a weak alkali?

• 1-3

• 4-6

• 8-11

• 12-14

Name the separation method that causes wet clothes on a clothes line to dry

• Chromatography
• Filtration
• Distillation
• Evaporation

How can we separate an insoluble solid from a liquid?

• chromatography

• evaporation

• filtration

• condensation

Which one of the following is the name for separation technique in the picture below

• distillation

• filtration

• evaporation

• chromatography

A combination that can be separated by physical processes is a .....

• Pure Substance
• Glucose
• Element
• Mixture

Which is a pure substance?

• Steam
• Sea Water
• Soil
• Lemonade