Texas Staar Grade 8 Science 2019 Released

STAAR?

State of Texas Assessments of Academic Readiness

GRADE 8

Science

Administered May 2019

RELEASED

Copyright ? 2019, Texas Education Agency. All rights reserved. Reproduction of all or portions of this work is prohibited without express written permission from the Texas Education Agency.

STAAR State of Texas Assessments of Academic Readiness

Net force = (mass)(acceleration)

total distance total time

STAAR GRADE 8 SCIENCE REFERENCE MATERIALS

FORMULAS

mass Density = volume

=

speed

Average

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1 1A

1

1H

1.008

2

Hydrogen

2A

3

4

2 Li Be

6.94

9.0122

Atomic number Symbol

Atomic mass

14

Si

28.085

Silicon

Name

Lithium Beryllium

11

12

3 Na Mg

22.990 24.305

3

4

5

6

7

8

9

10

11

Sodium Magnesium

3B

4B

5B

6B

7B

8B

1B

19

20

21

22

23

24

25

26

4 K Ca Sc Ti V Cr Mn Fe

39.098 40.078 44.956 47.867 50.942 51.996 54.938 55.845

Potassium Calcium Scandium Titanium Vanadium Chromium Manganese

Iron

27

Co

58.933

Cobalt

28

Ni

58.693

Nickel

29

Cu

63.546

Copper

37

38

39

40

41

42

43

44

45

46

47

5 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag

85.468

87.62

88.906 91.224 92.906

95.95

101.07 102.91 106.42 107.87

Rubidium Strontium

Yttrium

Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium

Silver

55

56

71

72

73

74

75

76

77

78

79

6 Cs Ba Lu Hf Ta W Re Os I r Pt Au

132.91

Cesium

137.33

Barium

174.97

Lutetium

178.49

Hafnium

180.95

Tantalum

183.84

Tungsten

186.21

Rhenium

190.23

Osmium

192.22

Iridium

195.08

Platinum

196.97

Gold

87

88

103

104

105

106

107

108

109

110

111

7 Fr Ra Lr Rf Db Sg Bh Hs Mt Ds Rg

12 2B 30

Zn

65.38

Zinc

48

Cd

112.41

Cadmium

80

Hg

200.59

Mercury

112

Cn

13 3A

5

B

10.81

Boron

13

Al

26.982

Aluminum

31

Ga

69.723

Gallium

49

In

114.82

Indium

81

Tl

204.38

Thallium

113

Nh

14

15

4A

5A

6

7

C N

12.011

Carbon

14

Si

14.007

Nitrogen

15

P

28.085

Silicon

32

Ge

30.974

Phosphorus

33

As

72.630

Germanium

50

Sn

74.922

Arsenic

51

Sb

118.71

Tin

82

Pb

121.76

Antimony

83

Bi

207.2

Lead

114

Fl

208.98

Bismuth

115

Mc

16 6A 8

O

15.999

Oxygen

16

S

32.06

Sulfur

34

Se

78.971

Selenium

52

Te

127.60

Tellurium

84

Po

Polonium

116

Lv

17 7A 9

F

18.998

Fluorine

17

Cl

35.45

Chlorine

35

Br

79.904

Bromine

53

I

126.90

Iodine

85

At

Astatine

117

Ts

18 8A 2

He

4.0026

Helium

10

Ne

20.180

Neon

18

Ar

39.948

Argon

36

Kr

83.798

Krypton

54

Xe

131.29

Xenon

86

Rn

Radon

118

Og

Francium Radium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium

Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson

Atomic masses are not listed for elements with no stable or common isotopes.

Lanthanide Series Actinide Series

57

La

138.91

Lanthanum

89

Ac

Actinium

58

59

60

61

62

Ce Pr Nd Pm Sm

140.12

Cerium

90

Th

140.91 144.24

Praseodymium Neodymium Promethium

91

92

93

Pa U Np

150.36

Samarium

94

Pu

232.04 231.04 238.03

Thorium Protactinium Uranium Neptunium Plutonium

Source: International Union of Pure and Applied Chemistry

63

Eu

151.96

Europium

95

Am

64

Gd

157.25

Gadolinium

96

Cm

Americium Curium

65

Tb

158.93

Terbium

97

Bk

66

Dy

162.50

Dysprosium

98

Cf

67

Ho

164.93

Holmium

99

Es

Berkelium Californium Einsteinium

68

Er

167.26

Erbium

100

Fm

69

Tm

168.93

Thulium

101

Md

70

Yb

173.05

Ytterbium

102

No

Fermium Mendelevium Nobelium Updated 2017

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SCIENCE

Science

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