Science - deck 1

Question 1

What is a state of matter in which the substance has a definite shape and volume?

Answer 1

solid

Question 2

What is a state of matter in which the substance has a definite volume but takes the shape of its container?

Answer 2

liquid

Question 3

What is a state of matter that can be observed, measured, or changed without changing the substance itself?

Answer 3

gas

Question 4

What is the amount of matter in an object or substance?

Answer 4

mass

Question 5

What is the amount of space that an object or substance takes up?

Answer 5

volume

Question 6

What is a physical property of a solid used to describe its surface?

Answer 6

texture

Question 7

What is the average speed of the particles in a substance?

Answer 7

temperature

Question 8

What is a property that can be observed, measured, or changed without changing the substance itself?

Answer 8

physical property

Question 9

Anything that takes up space and has mass is called ______?

Answer 9

matter

Question 10

The form matter can take is called ____?

Answer 10

state of matter

Question 12

What is a mixture?

Answer 12

A combination of two or more substances that are not chemically bonded.

Question 13

What is a solution?

Answer 13

A type of mixture where one substance is dissolved in another.

Question 14

True or False: In a mixture, the individual components retain their properties.

Answer 14

True

Question 15

Fill in the blank: A mixture can be made up of solids, liquids, or __________.

Answer 15

gases

Question 16

What is the solvent in a solution?

Answer 16

The substance that dissolves the solute.

Question 17

What is the solute in a solution?

Answer 17

The substance that is dissolved in the solvent.

Question 18

Multiple Choice: Which of the following is a solution? A) Sand and salt B) Sugar water C) Salad

Answer 18

B) Sugar water

Question 19

True or False: Solutions can be separated by physical means.

Answer 19

False

Question 20

What is an example of a solid mixture?

Answer 20

Granite, which is made of different minerals.

Question 21

Fill in the blank: When salt is added to water, it forms a __________.

Answer 21

solution

Question 22

What is the difference between a homogeneous mixture and a heterogeneous mixture?

Answer 22

A homogeneous mixture has a uniform composition, while a heterogeneous mixture does not.

Question 23

Multiple Choice: Which of the following is a heterogeneous mixture? A) Air B) Salad C) Vinegar

Answer 23

B) Salad

Question 24

True or False: All solutions are clear and colorless.

Answer 24

False

Question 25

What happens to the properties of substances in a mixture?

Answer 25

They retain their original properties.

Question 26

Fill in the blank: A __________ is a mixture where the different components can be seen and easily separated.

Answer 26

suspension

Question 27

What is an example of a liquid solution?

Answer 27

Lemonade, which is made by dissolving lemon juice and sugar in water.

Question 28

Multiple Choice: Which of the following is NOT a characteristic of a solution? A) Clear B) Uniform C) Can be separated by filtration

Answer 28

C) Can be separated by filtration

Question 29

True or False: Mixtures can be separated by physical methods like filtering or sorting.

Answer 29

True

Question 30

What is an example of a gas mixture?

Answer 30

Air, which is made up of different gases.

Question 31

Fill in the blank: An __________ is a mixture where tiny particles are dispersed but not dissolved.

Answer 31

emulsion

Question 32

What is it called when a solute completely dissolves in a solvent?

Answer 32

Saturation

Question 33

Multiple Choice: Which of the following is a characteristic of a heterogeneous mixture? A) Consistent composition B) Visible different parts C) Can’t be separated

Answer 33

B) Visible different parts

Question 34

True or False: Solutions can only be made from liquids.

Answer 34

False

Question 35

What process occurs when a solid solute dissolves in a liquid solvent?

Answer 35

Dissolution

Question 36

Fill in the blank: A __________ can be created by mixing oil and water, which do not mix well.

Answer 36

suspension

Question 37

What is the main difference between mixtures and compounds?

Answer 37

Mixtures are not chemically bonded, while compounds are.

Question 40

What is an independent variable?

Answer 40

An independent variable is the variable that is changed or controlled in an experiment to test its effects on the dependent variable.

Question 41

True or False: The dependent variable is the one that is measured in an experiment.

Answer 41

True

Question 42

Fill in the blank: In an experiment, the _____ variable is affected by changes in the independent variable.

Answer 42

dependent

Question 43

Which of the following is an example of a controlled variable? A) Temperature B) Amount of sunlight C) Type of plant D) All of the above

Answer 43

D) All of the above

Question 44

What is the purpose of controlled variables in an experiment?

Answer 44

Controlled variables are kept constant to ensure that the results are due to the independent variable alone.

Question 45

Identify the independent variable in the following experiment: 'Testing how different amounts of fertilizer affect plant growth.'

Answer 45

The different amounts of fertilizer.

Question 46

Short Answer: What is the main difference between dependent and independent variables?

Answer 46

The independent variable is manipulated, while the dependent variable is measured.

Question 47

True or False: In a scientific experiment, there can be more than one independent variable.

Answer 47

False

Question 48

Multiple Choice: Which variable is often graphed on the x-axis? A) Dependent Variable B) Independent Variable C) Controlled Variable D) None of the above

Answer 48

B) Independent Variable

Question 49

What is a controlled variable? Provide an example.

Answer 49

A controlled variable is a factor that is kept constant in an experiment. Example: The type of soil used in plant growth experiments.