Science Grade 4.2

Which of the following is a building material that occurs naturally in our environment and cannot be replaced?

• Soil

• Coal

• Metal

• Water

How can we conserve our natural reseources?

Answer explanation

. Reducing, reusing and recycling materials where possible

• Walking, cycling or taking public transport

• Stopping the illegal cutting down of trees

• Preventing forest fires

• Planting more trees

Name three examples of fossil fuels!

• Coal

• Oil

• Natural Gas

• Metal

Where are fossil fuels found?

• These fuels are found in Earth’s crust.

• These fuels are found in water.

• These fuels are found in air.

Fossil fuels can be replaced.

• 
• 

How is soil important to some plants and animals?

Answer explanation

Soil is important for the growth of some plants. These plants get water and minerals from the soil. Soil also anchors the roots of these plants in the ground.

Soil gives shelter to animals such as earthworms.

What building materials occur naturally in our environment?

Answer explanation

Wood

Soil

Rock

Sand

Adobe

Bamboo

What can cause our natural resources to run out?

• illegal cutting down of trees

• Overconsumption and waste.

• Pollution

Fossil fuel formed from dead plants and animals.

• True

• False

Which of the following describes how we can converse fossil fuels?

• By using more coal

• By using less electricity

• y using more electricity

• By taking a car instead of walking