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Unit 2 Matter Flashcards — Grade 7 Quiz

Total questions: 68

Worksheet time: 34mins

Name
Class
Date
1.

Which term is described as changes that break apart molecules or join atoms to form molecules?

a)

chemical reactions

b)

nuclear reactions

c)

mixtures

d)

molecules

2.

Which term refers to substances, such as salt or water, made from two or more chemical elements?

a)

compounds

b)

mixtures

c)

molecules

d)

properties

3.

Which term means unevenly mixed or containing parts that are very different?

a)

heterogeneous

b)

homogeneous

c)

rigid

d)

elastic

4.

Which term means evenly mixed or containing parts that are all similar?

a)

homogeneous

b)

heterogeneous

c)

mixtures

d)

synthetic

5.

Which term matches this description: Portions of matter that contain two or more substances that retain or keep their own properties. Two or more substances that are together in the same place but their atoms are not chem...

a)

mixtures

b)

compounds

c)

molecules

d)

mass

6.

Which term is defined as groups of atoms linked together; the smallest units that a chemical compound can be divided into that still display all of its chemical properties?

a)

molecules

b)

compounds

c)

ions

d)

isotopes

7.

Which term describes changes that break apart atoms or join particles to form atoms?

a)

nuclear reactions

b)

chemical reactions

c)

distillation

d)

vibrate

8.

Which term refers to qualities or characteristics of things, such as size, shape, color, or texture?

a)

properties

b)

proportions

c)

mass

d)

rigid

9.

Which term means relationships between different parts of a whole?

a)

proportions

b)

properties

c)

atomic orbital

d)

boson

10.

Which term means stiff, fixed, and difficult to move or bend; arranged in a tight structure?

a)

rigid

b)

elastic

c)

synthetic

d)

heterogeneous

11.

Which term means artificial; made in a lab rather than in nature?

a)

synthetic

b)

homogeneous

c)

mixtures

d)

distillation

12.

Which term means to shake or quiver in steady motion?

a)

vibrate

b)

elastic

c)

rigid

d)

distillation

13.

Which term is defined as the cloud of electrons spinning in the respective shell or energy level around the nucleus?

a)

atomic orbital

b)

ion

c)

isotopes

d)

molecules

14.

Which term refers to kinds of particles that follow the rules of the Bose-Einstein statistics?

a)

boson

b)

proton

c)

electron

d)

isotope

15.

Which term means purifying a liquid by first heating it and then cooling it?

a)

distillation

b)

synthesis

c)

filtration

d)

evaporation

16.

Which term describes the ability of a solid to be stretched or deformed but return to the original shape?

a)

elastic

b)

rigid

c)

synthetic

d)

homogeneous

17.

Which term is defined as an atom that has had all the electrons removed?

a)

ion

b)

isotope

c)

boson

d)

molecule

18.

Which term means a version of the same element with a different number of neutrons than the original element?

a)

isotopes

b)

ions

c)

compounds

d)

molecules

19.

Which term refers to the amount of material in a substance?

a)

mass

b)

proportions

c)

properties

d)

rigid

20.

Which term best matches the definition: the small curve in the horizontal line at the top of a liquid in a container

a)

meniscus

b)

periods

c)

plasma

d)

radioactive

21.

Which term best matches the definition: the rows in the Periodic Table of Elements that show the atomic orbital

a)

meniscus

b)

periods

c)

plasma

d)

radioactive

22.

Which term best matches the definition: a superheated gas with the electrons removed that doesn't behave like a gas

a)

meniscus

b)

periods

c)

plasma

d)

radioactive

23.

Which term best matches the definition: materials made up of atoms whose nuclei break down, giving off harmful radiation

a)

meniscus

b)

periods

c)

plasma

d)

radioactive

24.

Which term best matches the definition: the tiny parts that make up atoms, such as protons, neutrons, and electrons

a)

subatomic

b)

sublimation

c)

surface tension

d)

viscosity

25.

Which term best matches the definition: a physical change in the state of matter when a solid goes directly to a gas by evaporation

a)

subatomic

b)

sublimation

c)

surface tension

d)

viscosity

26.

Which term best matches the definition: a force holding the surface of a liquid together

a)

subatomic

b)

sublimation

c)

surface tension

d)

viscosity

27.

Which term best matches the definition: how easily a liquid will flow

a)

subatomic

b)

sublimation

c)

surface tension

d)

viscosity

28.

Which term best matches the definition: Anything that has mass and takes up space

a)

matter

b)

substance

c)

physical property

d)

chemical property

29.

Which term best matches the definition: A single kind of matter that is pure and has a specific set of properties

a)

matter

b)

substance

c)

physical property

d)

chemical property

30.

Which term best matches the definition: A characteristic of a pure substance that can be observed without changing it into another substance

a)

matter

b)

substance

c)

physical property

d)

chemical property

31.

Which term best matches the definition: A characteristic of a substance that describes its ability to change into different substances

a)

matter

b)

substance

c)

physical property

d)

chemical property

32.

Which term best matches the definition: The basic particle from which all elements are made; the smallest particle of an element that has the properties of that element

a)

atom

b)

element

c)

molecule

d)

compound

33.

Which term best matches the definition: A substance that contains one kind of atom and cannot be broken down into a simpler form

a)

atom

b)

element

c)

molecule

d)

compound

34.

Which term best matches the definition: A neutral group of two or more atoms held together by covalent bonds

a)

atom

b)

element

c)

molecule

d)

compound

35.

Which term best matches the definition: A substance made of two or more elements chemically combined in a specific ratio or proportion

a)

atom

b)

element

c)

molecule

d)

compound

36.

Which term best matches the definition: Two or more substances that are together in the same place but their atoms are not chemically bonded

a)

mixture

b)

distill

c)

volume

d)

weight

37.

Which term best matches the definition: To separate liquids by boiling them

a)

mixture

b)

distill

c)

volume

d)

weight

38.

Which term best matches the definition: The amount of space that matter occupies

a)

mixture

b)

distill

c)

volume

d)

weight

39.

Which term best matches the definition: A measure of the force of gravity acting on an object

a)

mixture

b)

distill

c)

volume

d)

weight

40.

Choose the definition that matches the term density.

a)

The measurement of how much mass of a substance is contained in a given volume.

b)

To show an equivalent value using a different unit of measurement.

c)

A change that alters the form or appearance of a material but does not make the material into another substance.

d)

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

41.

Choose the definition that matches the term convert.

a)

The measurement of how much mass of a substance is contained in a given volume.

b)

To show an equivalent value using a different unit of measurement.

c)

A change that alters the form or appearance of a material but does not make the material into another substance.

d)

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

42.

Choose the definition that matches the term physical change.

a)

The measurement of how much mass of a substance is contained in a given volume.

b)

To show an equivalent value using a different unit of measurement.

c)

A change that alters the form or appearance of a material but does not make the material into another substance.

d)

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

43.

Choose the definition that matches the term chemical change.

a)

The measurement of how much mass of a substance is contained in a given volume.

b)

To show an equivalent value using a different unit of measurement.

c)

A change that alters the form or appearance of a material but does not make the material into another substance.

d)

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

44.

Choose the definition that matches the term conservation.

a)

When nothing is lost or gained; to remain constant.

b)

A mixture containing small, undissolved particles that do not settle out.

c)

A mixture in which particles can be seen and easily separated by settling or filtration.

d)

A mixture containing a solvent and at least one solute that has the same properties throughout; a mixture in which one substance is dissolved in another.

45.

Choose the definition that matches the term colloid.

a)

When nothing is lost or gained; to remain constant.

b)

A mixture containing small, undissolved particles that do not settle out.

c)

A mixture in which particles can be seen and easily separated by settling or filtration.

d)

A mixture containing a solvent and at least one solute that has the same properties throughout; a mixture in which one substance is dissolved in another.

46.

Choose the definition that matches the term suspension.

a)

When nothing is lost or gained; to remain constant.

b)

A mixture containing small, undissolved particles that do not settle out.

c)

A mixture in which particles can be seen and easily separated by settling or filtration.

d)

A mixture containing a solvent and at least one solute that has the same properties throughout; a mixture in which one substance is dissolved in another.

47.

Choose the definition that matches the term solution.

a)

When nothing is lost or gained; to remain constant.

b)

A mixture containing small, undissolved particles that do not settle out.

c)

A mixture in which particles can be seen and easily separated by settling or filtration.

d)

A mixture containing a solvent and at least one solute that has the same properties throughout; a mixture in which one substance is dissolved in another.

48.

Choose the definition that matches the term solvent.

a)

The part of a solution that is usually present in the largest amount and dissolves a solute.

b)

The part of a solution that is dissolved by a solvent.

c)

A measure of how much solute can dissolve in a given solvent at a given temperature.

d)

When one substance completely disappears into another substance to form a solution.

49.

Choose the definition that matches the term solute.

a)

The part of a solution that is usually present in the largest amount and dissolves a solute.

b)

The part of a solution that is dissolved by a solvent.

c)

A measure of how much solute can dissolve in a given solvent at a given temperature.

d)

When one substance completely disappears into another substance to form a solution.

50.

Choose the definition that matches the term solubility.

a)

The part of a solution that is usually present in the largest amount and dissolves a solute.

b)

The part of a solution that is dissolved by a solvent.

c)

A measure of how much solute can dissolve in a given solvent at a given temperature.

d)

When one substance completely disappears into another substance to form a solution.

51.

Choose the definition that matches the term dissolve.

a)

The part of a solution that is usually present in the largest amount and dissolves a solute.

b)

The part of a solution that is dissolved by a solvent.

c)

A measure of how much solute can dissolve in a given solvent at a given temperature.

d)

When one substance completely disappears into another substance to form a solution.

52.

Choose the definition that matches the term reactant.

a)

A substance that enters into a chemical reaction.

b)

A substance formed as a result of a chemical reaction.

c)

A reaction that releases energy, usually in the form of heat.

d)

A reaction that absorbs energy.

53.

Choose the definition that matches the term product.

a)

A substance that enters into a chemical reaction.

b)

A substance formed as a result of a chemical reaction.

c)

A reaction that releases energy, usually in the form of heat.

d)

A reaction that absorbs energy.

54.

Choose the definition that matches the term exothermic reaction.

a)

A substance that enters into a chemical reaction.

b)

A substance formed as a result of a chemical reaction.

c)

A reaction that releases energy, usually in the form of heat.

d)

A reaction that absorbs energy.

55.

Choose the definition that matches the term endothermic reaction.

a)

A substance that enters into a chemical reaction.

b)

A substance formed as a result of a chemical reaction.

c)

A reaction that releases energy, usually in the form of heat.

d)

A reaction that absorbs energy.

56.

Choose the definition that matches the term rate.

a)

How slowly or quickly something happens.

b)

The principle that the total amount of matter remains the same, regardless of any chemical or physical change.

c)

A system in which matter can enter from or escape into its surroundings.

d)

A system in which no matter is allowed to enter or leave.

57.

Choose the definition that matches the term law of conservation of mass.

a)

How slowly or quickly something happens.

b)

The principle that the total amount of matter remains the same, regardless of any chemical or physical change.

c)

A system in which matter can enter from or escape into its surroundings.

d)

A system in which no matter is allowed to enter or leave.

58.

Choose the definition that matches the term open system.

a)

How slowly or quickly something happens.

b)

The principle that the total amount of matter remains the same, regardless of any chemical or physical change.

c)

A system in which matter can enter from or escape into its surroundings.

d)

A system in which no matter is allowed to enter or leave.

59.

Choose the definition that matches the term closed system.

a)

How slowly or quickly something happens.

b)

The principle that the total amount of matter remains the same, regardless of any chemical or physical change.

c)

A system in which matter can enter from or escape into its surroundings.

d)

A system in which no matter is allowed to enter or leave.

60.

Choose the definition that matches the term: decomposition.

a)

The act of a compound breaking down into simpler products.

b)

Created or manufactured by humans; not found occurring in nature.

c)

A long chain of molecules made up of repeating units.

d)

Anything naturally occurring in the environment that humans use.

61.

Choose the definition that matches the term: synthetic.

a)

Created or manufactured by humans; not found occurring in nature.

b)

The act of a compound breaking down into simpler products.

c)

A long chain of molecules made up of repeating units.

d)

Anything naturally occurring in the environment that humans use.

62.

Choose the definition that matches the term: natural resource.

a)

Anything naturally occurring in the environment that humans use.

b)

Created or manufactured by humans; not found occurring in nature.

c)

A long chain of molecules made up of repeating units.

d)

The act of a compound breaking down into simpler products.

63.

Choose the definition that matches the term: polymer.

a)

A long chain of molecules made up of repeating units.

b)

Created or manufactured by humans; not found occurring in nature.

c)

The act of a compound breaking down into simpler products.

d)

Anything naturally occurring in the environment that humans use.

64.

Choose the definition that matches the term: replicate.

a)

To make an exact copy.

b)

Tell us how many atoms are in the compound.

c)

Tell us how many molecules are present.

d)

Shows the elements in a compound and the ratio of those atoms.

65.

Choose the definition that matches the term: subscripts.

a)

Tell us how many atoms are in the compound.

b)

To make an exact copy.

c)

Tell us how many molecules are present.

d)

Shows the elements in a compound and the ratio of those atoms.

66.

Choose the definition that matches the term: coefficients.

a)

Tell us how many molecules are present.

b)

To make an exact copy.

c)

Tell us how many atoms are in the compound.

d)

Shows the elements in a compound and the ratio of those atoms.

67.

Choose the definition that matches the term: chemical formula.

a)

Shows the elements in a compound and the ratio of those atoms.

b)

To make an exact copy.

c)

Tell us how many atoms are in the compound.

d)

Tell us how many molecules are present.

68.

Choose the definition that matches the term: graduated cylinder.

a)

Used to measure volume.

b)

To make an exact copy.

c)

Tell us how many atoms are in the compound.

d)

Shows the elements in a compound and the ratio of those atoms.

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