Key Words

Question 1

Control variable

Answer 1

The thing you keep the same

Question 2

Independent variable

Answer 2

The thing you change

Question 3

Dependent variable

Answer 3

The one you measure

Question 4

Solute

Answer 4

The solid that dissolves into the solvent (liquid part)

Question 5

Solvent

Answer 5

The liquid that a solute can dissolve into

Question 6

Solution

Answer 6

A solid dissolved into a liquid

Question 7

Soluble

Answer 7

A solid that does dissolve

Question 8

Insoluble

Answer 8

A solid that doesn’t dissolve

Question 9

Element

Answer 9

A pure substance made from one type of atom

Question 10

Atom

Answer 10

The smallest part of the element that can exist. They come in different types

Question 11

Isotope

Answer 11

An element which has the same number of protons and electrons but a different number of neutrons

Question 12

Exothermic

Answer 12

Heat energy is given out to the surroundings (produces heat)

Question 13

Endothermic

Answer 13

Heat is taken in from the surroundings (this means it cools down)

Question 14

Alloy

Answer 14

A material containing two or more metals or a metal and a nine metal

Question 15

Ductile

Answer 15

Capable of being drawn out by wire

Question 16

Grain

Answer 16

A crystal of metal

Question 17

Malleable

Answer 17

Bend easily but done break (metals are malleable as can slip and slide easily)