Science Review

What is a food chain?

• A food chain is a series of organisms each dependent on the next as a source of food.

• A food chain is a diagram that shows the energy flow in an ecosystem.

• A food chain is a list of all the animals in a habitat.

• A food chain is a type of food that is healthy for humans.

What are the three states of water?

• Solid (ice), liquid (water), and gas (water vapor)

• Solid (ice), liquid (oil), and gas (steam)

• Solid (rock), liquid (water), and gas (air)

• Solid (ice), liquid (water), and gas (carbon dioxide)

What is the role of producers in an ecosystem?

• Producers, like plants, make their own food and provide energy for other organisms.

• Producers consume other organisms for energy.

• Producers decompose organic matter to recycle nutrients.

• Producers are organisms that cannot make their own food.

What is the water cycle?

• The process of water evaporating and condensing in the atmosphere.

• The continuous movement of water on, above, and below the surface of the Earth.

• The method by which plants absorb water from the soil.

• The cycle of water being stored in glaciers and ice caps.

What causes air pollution?

• Smoke from a fire causes air pollution.

• Excessive use of plastic bags causes air pollution.

• Planting more trees causes air pollution.

• Using public transport reduces air pollution.

What is air pollution?

• Air pollution is the contamination of the air by harmful substances.

• Air pollution is the process of cleaning the air using chemicals.

• Air pollution refers to the absence of any particles in the air.

• Air pollution is the natural occurrence of dust and pollen in the atmosphere.

What is recycling?

• Recycling is the process of converting waste materials into reusable materials.

• Recycling is the act of throwing away old items.

• Recycling is the process of burning waste materials.

• Recycling is the method of burying waste underground.

What is a habitat?

• A habitat is a type of food chain.

• A habitat is the natural environment where an organism lives.

• A habitat is a type of animal.

• A habitat is a scientific method of studying organisms.

What does the word 'igneous' mean?

• Relating to water

• Relating to earth

• Relating to fire

• Relating to air

What is the importance of trees in the environment?

• Trees provide oxygen, improve air quality, and support wildlife.

• Trees are primarily used for timber and construction.

• Trees have no significant impact on the environment.

• Trees are mainly decorative and serve no ecological purpose.