5th Science, Unit 1 CA Review

Front

What is the law of conservation of matter?

Back

The law of conservation of matter states that matter cannot be created or destroyed in an isolated system.

Front

What happens to a solid when it dissolves in water?

Back

The solid mixes completely with the water, forming a solution, but it is still present in the mixture.

Front

What is a solution?

Back

A solution is a homogeneous mixture where one substance (solute) is completely dissolved in another (solvent).

Front

Which mixture is a solution: water and sand, water and rocks, water and salt, or glass marbles and water?

Back

Water and salt is a solution.

Front

What is the best method to separate a mixture of salt and pepper in water?

Back

Using a paper filter is the best method to separate salt and pepper in water.

Front

How can you separate small rocks from cork?

Back

You can separate small rocks from cork by using a beaker and water.

Front

What is the difference between a mixture and a solution?

Back

A mixture is a combination of two or more substances that retain their individual properties, while a solution is a type of mixture where one substance is dissolved in another.

Front

What happens to sugar when it is added to water?

Back

The sugar dissolves and spreads out evenly in the water, making it sweet.

Front

What is filtration?

Back

Filtration is a process used to separate solids from liquids using a filter.

Front

What is an example of a solid that dissolves in water?

Back

Sugar is an example of a solid that dissolves in water.