Quiz on Solutions

What is a solution?

• A mixture where substances are not evenly spread

• A special mixture where a substance is evenly spread throughout another

• A solid substance mixed with a liquid

• A gas mixed with a liquid

What happens when lemon juice is stirred into water?

• It sinks to the bottom

• It forms a separate layer

• It spreads evenly throughout the water

• It evaporates

Which of the following is an example of a solution?

• Sand and water

• Oil and water

• Saltwater

• Rocks and water

What physical property changes when salt is stirred into warm water?

• The salt's temperature

• The salt's size and color

• The water's boiling point

• The water's color

What does the conservation of matter in a solution mean?

• The total mass of the solution is less than the mass of the ingredients

• The total mass of the solution is more than the mass of the ingredients

• The total mass of the solution is equal to the mass of the ingredients

• The total mass of the solution is irrelevant

What is the definition of force?

• A force of attraction to a magnet

• A push or pull

• A force of attraction between two bodies

• A force of resistance between two objects that touch

Which of the following describes magnetism?

• A push or pull

• A force of attraction to a magnet

• A force of resistance between two objects that touch

• A force of attraction between two bodies

What is the role of an independent variable in an experiment?

• It is the variable that is measured or observed

• It is the variable that is kept constant

• It is the variable that is changed by the scientist

• It is the variable that results from the change

In the example provided, what is the independent variable?

• Force

• Surface

• Mass of block

• Spring scale

What is the dependent variable in the example investigation?

• Surface

• Mass of block

• Force

• Spring scale