6th Grade Finals Corrections

Front

Which fossil fuel creates the least amount of pollution?

Back

Natural gas is the fossil fuel that creates the least amount of pollution compared to coal and oil.

Front

What is a dwarf planet?

Back

A dwarf planet is a celestial body that orbits the sun and is similar to a planet but does not clear its orbit of other debris. An example is Pluto.

Front

What is the best way to keep a river clean that runs through an animal pasture?

Back

The best way is to not let the animals in the river at all to prevent pollution.

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances, such as nail rusting or sour milk.

Front

What is NOT a chemical change?

Back

Ice melting is NOT a chemical change; it is a physical change.

Front

What causes surface tension in liquids?

Back

Surface tension occurs because of cohesion, which is the attraction between molecules of the same substance.

Front

What is cohesion?

Back

Cohesion is the force that holds molecules of the same substance together, such as water molecules.

Front

What is adhesion?

Back

Adhesion is the force that causes different substances to stick together, like water sticking to a leaf.

Front

What is pollution?

Back

Pollution is the introduction of harmful substances or products into the environment, affecting air, water, and land.

Front

What are fossil fuels?

Back

Fossil fuels are natural substances formed from the remains of ancient plants and animals, used as energy sources, including coal, oil, and natural gas.