FREE PHYSICAL SCIENCE AND STUDY GAMES ABOUT

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FREE PHYSICAL SCIENCE AND STUDY GAMES ABOUT

DENSITY VOCAB EXAM QUESTIONS

Qs and Ans Expert- Explanation

This Exam contains:

-Guarantee passing score -17 Questions and Answers -format set of multiple-choice -Expert- Explanation

Question 1: chemical change

Answer:

A change in which one or more substances combine or break apart to from new substances

Question 2: independent variable

Answer:

Variable that is adjusted to different values by the experimenter (variable you change)

Question 3: Solid

Answer:

A state of matter that has a definite shape and definite volume.

Question 4: Freezing

Answer:

Change in state from a liquid to a solid.

Question 5: Volume

Answer:

The amount of space that matter occupies

Question 6: Gas

Answer:

A state of matter that has neither definite shape nor definite volume.

Question 7: Plasma

Answer:

A state of matter that consits of a gas-like mixture of free electrons and nuclei of atoms that have been stripped of electrons.

Question 8: Liquid

Answer:

A state of matter that has a definite volume but no shape of its own.

Question 9: physical change

Answer:

A change in a substance that does not change its identity.

Question 10: Density

Answer:

The ratio of the mass of a substance to its volume

Question 11: Mass

Answer:

A measure of how much matter is in an object

Question 12: dependent variable

Answer:

Variable that changes when the factor being tested is changed (data you collect)

Question 13: Weight

Answer:

A measure of the force of gravity on an object

Question 14: Boiling

Answer:

When a liquid changes to a gas below its surface as well as at the surface.

Question 15: Sublimation

Answer:

When particles of a solid do not pass through the liquid state as they form a gas.

Question 16: Vaporization

Answer:

When the particles in a liquid gain enough energy to form a gas.

Question 17: Melting

Answer:

Change in state from a solid to a liquid.