What is mass?

• The amount of space an object takes up.

• The amount of gravitational force acting on an object.

• The amount of matter in an object.

• The amount of energy in an object.

What is the state of matter that has a firm stable shape?

• Gas

• Liquid

• Solid

• Plasma

What does qualitative data describe?

• The quantity of an object

• The quality of an object

• The weight of an object

• The age of an object

What type of data can be measured?

• Qualitative

• Quantitative

• Descriptive

• Observational

Which of the following is an example of a physical property?

• The temperature of the ice

• The ability of iron to rust

• The flammability of gasoline

• The reaction of vinegar with baking soda

What happens to a key when it is exposed to water and air?

• It melts

• It rusts

• It breaks

• It shrinks

Which of the following could be toxic to humans?

• Water

• Sugar

• A certain chemical

• Salt

What is a key characteristic of a solution?

• Items are still the same

• New substance formed

• Each item has the same properties as before

• Can be separated easily

What do solutions and mixtures have in common?

• Both are made up of 2+ substances

• Both have new properties

• Both can be separated by evaporation

• Both form new substances

What is a physical change?

• A change that creates a new substance

• A change that alters the physical properties and can usually be reversed

• A change that cannot be reversed

• A change that involves a chemical reaction