Matter 7th

__________ is anything that has mass and takes up space.

• matter

• atom

• mass

• volume

Alisa placed a small seashell on the pan of a balance. What other tool does she need to determine the density of the seashell?

• scale

• calculator

• thermometer

• graduated cylinder

Which process is an example of a physical change?

• burning

• rusting

• flattening

• decomposing

What happens to the temperature of a sample of matter as it changes from a liquid to a gas?

• Temperature increases

• Temperature decreases

• Temperature remains constant

• Temperature first decreases and then increases

On a hot day, a puddle dries up. Which statement describing this event is true?

• The water in the puddle boils and becomes a gas.

• The water in the puddle evaporates into water vapor

• The water in the puddle condenses and becomes part of air

• The water in the puddle changes into particles of oxygen in the air.

What are the 3 states of matter?

• solid , liquid, oxygen

• solid , liquid , gas

• gas, helium, oxide

• condensation, sublimation, concentration

Which statement is true about particles in matter?

• The particles that make up solids do not move.

• The particles that make up liquid do not move.

• Particles are constantly in motion.

• Only the particles in gas are in motion.

Magnetism , solubility, and malleability are physical properties of matter. What makes these properties different from chemical properties?

• Physical properties relate to elements rather than compounds.

• Physical properties appear only after a chemical change occurs.

• Physical properties can be observed without attempting to change the identity of the substance.

• Physical properties describe elements in the solid state rather than in the liquid or gas state.

A child is upset because his ice cream is melting. He thinks he now has less dessert. Which of the following explanations correctly states why the child is incorrect?

• He actually has more , not less , ice cream.

• No mass is lost during a change of state.

• The mass will increase if he freezes the melted ice cream.

• Mass is lost only during certain changes of state , such as freezing.

Which of the following is a way in which elements and compounds are similar?

• Elements and compounds are both pure substances.

• Elements and compounds are both listed on the periodic table.

• Elements and compounds are both made up of different kinds of atoms.

• Elements and compounds can both be broken down by physical changes.