Science Unit 1

Question 1

What is a solid?

Answer 1

A solid is one of the three states of matter, has mass and is made up of atoms.

Question 2

What is a liquid?

Answer 2

A liquid is one of the three states of matter, has mass, volume and is made up of atoms.

Question 3

What is a gas?

Answer 3

A gas is one of three states of matter, has mass and takes up space it also has no fixed shape.

Question 4

What is matter?

Answer 4

Matter is anything that has mass, volume and takes up space, matter is made up of atoms and is able to change states.

Question 5

What are the 3 states of matter?

Answer 5

Solid, liquid and gas.

Question 6

What is a substance?

Answer 6

A substance is matter that has particular properties.

Question 7

What is a pure substance?

Answer 7

A pure substance is a single form of matter that cannot be physically separated in other types of matter.

Question 8

What is a Mixture?

Answer 8

A mixture is when two or more substances physically combine.

Question 9

Contrast

Answer 9

Talk about the differences.

Question 10

Soluble?

Answer 10

A substance that dissolves is said to be soluble.

Question 11

Insoluble?

Answer 11

A substance that does not dissolve is said to be insoluble.

Question 12

What is a solution?

Answer 12

A solution (liquid) is homogenous mixture that looks and behaves like a single substance.

Question 13

What is a solution made of?

Answer 13

Solvent + Solute = Solution

Question 14

What is the Solvent?

Answer 14

The solvent is the substance that dissolves the other ( the solvent is always a liquid).

Question 15

What is the Solute?

Answer 15

The solute is the substance that dissolves. (Can be a solid or liquid)

Question 16

What is Qualitative data?

Answer 16

Qualitative data is referring to the qualities/descriptive.

Question 17

What is Quantitative data?

Answer 17

Quantitative data is referring to quantities and is expressed in numbers.

Question 18

What is Parallax error?

Answer 18

Parallex error is the error you get from not reading the scale at 90 degrees

Question 19

What is the safety flame on a Bunsen burner?

Answer 19

The Safety flame is what you get when the air hole is closed, it is also yellow, quiet and less hot than the working flame.

Question 20

What is the working flame on a Bunsen burner?

Answer 20

The Working flame is when the air hole is open, it is blue, noisy and very hot.

Question 21

What are the 3 types of variables?

Answer 21

Controlled variable, independent variable and dependent variable.

Question 22

What is the Controlled variable?

Answer 22

The Controlled variable is the variable that remains the same through the whole experiment so it is a fair test.

Question 23

What is the Independent variable?

Answer 23

The Independent variable is the variable is the one that is changed.

Question 24

What is the Dependent variable?

Answer 24

The Dependent variable is the variable that depends on other factors (is the one we measure)

Question 25

What are the types of Strengths of Solutions?

Answer 25

Diluted solution, Saturated solution, Concentrated solution and aqueous solution.

Question 26

What is a Diluted solution?

Answer 26

Contains only a small amount of solute.

Question 27

What is a Saturated solution?

Answer 27

Is when the solvent won’t dissolve the solute any more.

Question 28

What is a Concentrated solution?

Answer 28

Is when there is a larger amount of solute.

Question 29

What is a Suspension?

Answer 29

A suspension is a mixture between a liquid and a solid, however the solid particles do not dissolve because the solid particles are said to be suspended.

Question 30

What is a aqueous solution?

Answer 30

is when the solvent is water.