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8th Grade STAAR Review: Category 1- Matter and Energy

Total questions: 64

Worksheet time: 12hrs 39mins

Name
Class
Date
1.

Which characteristics of PROTONS correctly complete the chart?

a)

Neutral/ Nucleus/ 1

b)

Positive/ Nucleus/ 1

c)

Negative/ Electron Cloud/ 0.0005

2.

Which characteristics of NEUTRONS correctly complete the chart?

a)

Neutral/ Nucleus/ 1

b)

Positive/ Nucleus/ 1

c)

Negative/ Electron Cloud/ 0.0005

3.

Which characteristics of ELECTRONS correctly complete the chart?

a)

Neutral/ Nucleus/ 1

b)

Positive/ Nucleus/ 1

c)

Negative/ Electron Cloud/ 0.0005

4.

Electrons in the outermost shell of the electron cloud. They determine reactivity.

a)

Electron Cloud

b)

Electron

c)

Valence Electron

d)

Isotope

5.

Substance that cannot be broken down into simpler substances.

Ex. Hydrogen, Oxygen, Helium

a)

Elements

b)

Isotope

c)

Neutrons

d)

Electrons

6.

Center of the atom that contains protons and neutrons. Most of the mass of the atom with an overall positive charge.

a)

Electron Cloud

b)

Nucleus

c)

Isotope

d)

Elements

7.

Positively charged particles in the nucleus of an atom.

a)

Protons

b)

Neutrons

c)

Electrons

d)

Isotope

8.

Outside the nucleus of the atom where electrons are found. Largest part of the atom, but least massive. Overall negative charge.

a)

Nucleus

b)

Elements

c)

Electron Cloud

d)

Protons

9.

Negatively charged particle.

a)

Proton

b)

Neutron

c)

Electron

d)

Isotope

10.

Neutrally charged (no charge) particle found in the nucleus of an atom.

a)

Proton

b)

Neutron

c)

Electron

d)

Isotope

11.

Atoms of the same element that have a different number of neutrons.

a)

Proton

b)

Neutron

c)

Electron

d)

Isotope

12.

Using the diagram, how many PROTONS does this atom have?

a)

4

b)

5

c)

6

d)

7

13.

Using the diagram, how many NEUTRONS does this atom have?

a)

4

b)

5

c)

6

d)

7

14.

Using the diagram, how many ELECTRONS does this atom have?

a)

4

b)

5

c)

6

d)

7

15.

Using the diagram, how many VALENCE ELECTRONS does this atom have?

a)

4

b)

5

c)

6

d)

7

16.

Using the diagram, this element is:

a)

Metal

b)

Non-metal

c)

Metalloid

17.

Based on the information from the diagram, this element is:

a)

Nitrogen

b)

Hydrogen

c)

Carbon

d)

Helium

18.

The GROUP NUMBER of this element is:

a)

6A

b)

5A

c)

1A

d)

4A

19.

The PERIOD NUMBER of this element is:

a)

1

b)

2

c)

3

d)

4

20.

This element is:

a)

Highly reactive because it has 7 electrons

b)

Highly reactive because it has the same number of protons and neutrons

c)

Non-reactive because it has neutrons

d)

Somewhat reactive because it has 5 valence electrons

21.

What determines an element's identity?

a)

Number of Protons

b)

Number of Neutrons

c)

Number of Electrons

d)

Number of Valence Electrons

22.

What determines an element's reactivity?

a)

Number of Protons

b)

Number of Neutrons

c)

Number of Electrons

d)

Number of Valence Electrons

23.

Elements that are usually gases or brittle solids at room temperature and poor conductors of heat and electricity.

a)

Metal

b)

Metalloid

c)

Non-Metal

24.

Elements that have luster, are good conductors of heat and electricity, and are ductile and malleable.

a)

Metal

b)

Metalloid

c)

Non-Metal

25.

Elements that share some properties with metals and some with non-metals.

a)

Metal

b)

Metalloid

c)

Non-Metal

26.

Row of elements on the periodic table that represent the number of energy levels.

a)

Atomic Number

b)

Atomic Mass

c)

Period

d)

Group

27.

Number of protons in the nucleus.

a)

Atomic Number

b)

Atomic Mass

c)

Period

d)

Group

28.

Neutrons and protons in the nucleus of an atom.

a)

Atomic Number

b)

Atomic Mass

c)

Period

d)

Group

29.

Column on the periodic table that represents the number of valence electrons and have similar physical or chemical properties (they react the same).

a)

Atomic Number

b)

Atomic Mass

c)

Period

d)

Group

30.

H20

a)

Element

b)

Molecule

c)

Compound

31.

H20

a)

organic

b)

inorganic

32.

N

a)

Element

b)

Molecule

c)

Compound

33.

N

a)

organic

b)

inorganic

34.

O2

a)

Element

b)

Molecule

c)

Compound

35.

O2

a)

organic

b)

inorganic

36.

CH3

a)

Element

b)

Molecule

c)

Compound

37.

CH3

a)

organic

b)

inorganic

38.

C6H12O6

a)

Element

b)

Molecule

c)

Compound

39.

C6H12O6

a)

organic

b)

inorganic

40.

The highlighted portion of the equation is the:

a)

Reactants

b)

Products

c)

Yield

d)

Coefficient

41.

The highlighted portion of the equation is the:

a)

Reactants

b)

Products

c)

Yield

d)

Coefficient

42.

The highlighted portion of the equation is the:

a)

Reactants

b)

Subscript

c)

Yield

d)

Coefficient

43.

The highlighted portion of the equation is a:

a)

Reactants

b)

Subscript

c)

Yield

d)

Coefficient

44.

The highlighted portion of the equation is a:

a)

Reactants

b)

Subscript

c)

Yield

d)

Coefficient

45.

How many molecules are on the REACTANT side of the equation?

a)

4

b)

6

c)

12

d)

7

46.

How many molecules are on the PRODUCT side of the equation?

a)

4

b)

6

c)

7

d)

12

47.

How many H atoms are in 6H20?

a)

6

b)

2

c)

12

d)

8

48.

How many O atoms are in 6H20?

a)

1

b)

6

c)

2

d)

8

49.

Does this equation support the Law of Conservation of Mass?

a)

Yes, because it is balanced

b)

No, because it is not balanced

c)

Yes, because it has a yield sign

d)

No, because the compounds are different

50.

Slicing Bread

a)

Chemical change

b)

Physical Change

51.

Mowing the yard

a)

Chemical change

b)

Physical Change

52.

Toasting Bread

a)

Chemical change

b)

Physical Change

53.

Breaking a pencil

a)

Chemical change

b)

Physical Change

54.

Rusting Nails

a)

Chemical change

b)

Physical Change

55.

Digesting food using stomach acid

a)

Chemical change

b)

Physical Change

56.

Chewing food into smaller pieces

a)

Chemical change

b)

Physical Change

57.

Cracking Eggs

a)

Chemical change

b)

Physical Change

58.

Boiling water

a)

Chemical change

b)

Physical Change

59.

Melting Ice

a)

Chemical change

b)

Physical Change

60.

Gas burns in a car engine

a)

Chemical change

b)

Physical Change

61.

Burning a match

a)

Chemical change

b)

Physical Change

62.

Cutting hair

a)

Chemical change

b)

Physical Change

63.

Fireworks

a)

Chemical change

b)

Physical Change

64.

Churning food in your stomach

a)

Chemical change

b)

Physical Change

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