7th grade science 10

Question 1

Gas

Answer 1

Matter that does not have a definite shape or volume

Question 2

Liquid

Answer 2

Or that has a definite volume but has no definite shape

Question 3

Matter

Answer 3

Anything that takes up space and has mass

Question 4

Solid

Answer 4

Matter with a definite shape and volume

Question 5

Surface tension

Answer 5

The unequal forces acting on the particles on the surface of a liquid

Question 6

Viscosity

Answer 6

How much a liquid resist flowing

Question 7

Condensation

Answer 7

The change from a gas to a liquid

Question 8

Freezing

Answer 8

The change from the liquid state to the solid state

Question 9

Heat

Answer 9

Movement of thermal energy from a substance at a higher temperature to a substance at a lower temperature

Question 10

Melting

Answer 10

The change from the solid-state to the liquid state

Question 11

Temperature

Answer 11

The average kinetic energy of all the particles of a substance

Question 12

Thermal energy

Answer 12

The total kinetic energy of all the particles in a sample of matter

Question 13

Vaporization

Answer 13

Change from a liquid to a gas

Question 14

Archimedes principle

Answer 14

The buoyant force of an object is equal to the weight of the liquid removed by the object

Question 15

Buoyant force

Answer 15

The force that pushes up on an object that is in a fluid

Question 16

Density

Answer 16

Mass divided by volume

Question 17

Pascal’s principal

Answer 17

When a force is applied to a fluid in a closed container, the increase in pressure is moved equally to all parts of the fluid

Question 18

Pressure

Answer 18

The force put on a surface divided by the total area over which the force is applied