Front

What is a mixture?

Back

Different substances not chemically joined together.

Answer explanation

A mixture consists of different substances that are not chemically combined. This means each substance retains its own properties, unlike compounds where atoms are chemically bonded.

Front

What is a natural resource?

Back

A raw material found in nature that may be processed into useful substances.

Answer explanation

A natural resource is defined as a raw material found in nature that can be processed into useful substances, making this choice the correct answer. The other options do not accurately describe natural resources.

Front

Which of the following is an example of a natural resource? Options: Plastic, Wood, Steel, Glass

Back

Wood

Answer explanation

Wood is a natural resource derived from trees, used for various purposes. In contrast, plastic, steel, and glass are synthetic or processed materials, not classified as natural resources.

Front

Which of the following is NOT a natural resource? Wheat, Fossil fuel, Plastic, Wood

Back

Plastic

Answer explanation

Plastic is a synthetic material made from petrochemicals, not a natural resource. In contrast, wheat, fossil fuels, and wood are all derived from natural processes.

Front

What is an example of a compound?

Back

Water

Answer explanation

Water is a compound made of two hydrogen atoms and one oxygen atom (H2O). In contrast, gold is an element, air is a mixture, and wood is an organic material, not a pure compound.

Front

Natural resource

Back

A raw material found in nature that may be processed into useful substances.

Answer explanation

A natural resource is defined as a raw material found in nature that can be processed into useful substances, making this choice the correct answer. The other options do not accurately describe natural resources.

Front

What builds up on top of the mud?

Back

Layers of sand

Answer explanation

Layers of sand build up on top of mud due to sedimentation processes, where sand particles settle and accumulate over time, creating distinct layers above the mud.

Front

Where is oil typically found?

Back

In geological formations called reservoirs

Answer explanation

Oil is typically found in geological formations called reservoirs, where it accumulates over time. This is the correct choice, as oil is not found in the atmosphere, rivers, or forests.

Front

What process is used to extract oil from reservoirs?

Back

Drilling a well

Answer explanation

The correct process to extract oil from reservoirs is by drilling a well. This method allows access to underground oil deposits, unlike mining, evaporation, or filtration, which are not suitable for oil extraction.

Front

What is a common use of synthetic products made from oil?

Back

Making plastics

Answer explanation

Synthetic products made from oil are commonly used in making plastics, which are essential materials in various industries. Other options like building bridges or cleaning oceans do not primarily involve synthetic oil products.