The smallest organism known to man is made up of..

• one cell

• two cells

• three cells

• many cells

Which of the following is NOT a property of an acid?

• Tastes sour
• Corrosive
• Changes the colour of blue litmus paper to red
• Has a pH value higher than 7

What gas is released when an acid reacts with an reactive metal?

• Oxygen
• Hydrogen
• Helium
• Bromine

Which of the following is NOT a property of an alkali?

• Tastes bitter
• Corrosive
• Changes the colour of blue litmus paper to red
• Has a pH value higher than 7

What is the pH value of vinegar?

• 1
• 7
• 4
• 11

What is the process that takes place when an acid reacts with an alkali?

• Titration
• Evaporation
• Neutralisation
• Sublimation

Tags

NGSS.MS-PS1-5

How does heat move?

• From insulators to conductors

• In all direction at once

• From hotter to colder region

• From colder to hotter region

What happened when an object is heated ?

• The object expands

• The object contracts

What happened when liquid is cooled ?

• The liquid expands

• The liquid contracts

During a hot and sunny day, what colour of shirt is suitable for you to wear?

• Black

• White

• Any colour will be fine