Science 5- Periodical Test

What property does gold have if can be shaped into rings?

• brittleness

• elasticity

• hardness

• malleability

Niña is fond of cleaning the toilet. What is the best way she can use to clean it?

• Using soap detergent and water.

• Using muriatic acid.

• Pouring baking soda

• Pouring baking soda

Which of the following results physical change in an object?

• Burning a piece of paper.                              

• Cutting of wood into smaller pieces

• Chewing a piece of bread      

• Mixing paint with a thinner

Among the given examples, which undergo chemical change?

• Cutting a broken glass                       

• Cutting a piece of wood

• cutting a paper into one-fourth

• Rusting of a steel wool

The absence of oxygen in lighting a candle will cause the candle’s flame to _____.

• burn                                     

• flare

• ignite

• extinguish

The absence of oxygen in lighting a candle will cause the candle’s flame to _____.

• burn                                     

• flare

• ignite

• extinguish