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8th grade STAAR science review

Total questions: 20

Worksheet time: 13mins

Name
Class
Date
1.

what is luster?

a)

the ability to be pulled into a thin wire

b)

ability to be pounded into thin sheets

c)

ability to transfer heat or electrical energy

d)

describes the way a mineral reflects light

2.

valance electrons tell you what?

a)

the elements identity

b)

the elements reactivity

3.

the subscript is ?

a)

the # of molecules

b)

the # of protons

c)

the # of atoms

d)

the # of elements

4.

what group is the most reactive

a)

group 18

b)

group 17

c)

group 7

d)

group 1

5.

the nucleus is made up of

a)

protons

b)

electrons and protons

c)

neutrons and protons

d)

neutrons and electrons

e)

neutrons

6.

what is inertia

a)

more mass is less acceleration

b)

for every action there is a equal and opposite reaction

c)

tendency to resist a change in motion

d)

more force is more acceleration

7.

acceleration is the change in

(a)  

8.

velocity is

a)

speed only

b)

direction only

c)

distance traveled

d)

speed and direction

9.

what does this graph show

a)

object at rest

b)

constant speed

10.

potential energy

a)

stored energy

b)

energy of motion

11.

summer is

a)

tilted away from sun

b)

direct light

c)

tilted toward sun

d)

indirect light

12.

humans depend on the ocean for transportation

a)

true

b)

false

13.

hot air is

a)

more dense

b)

less dense

14.

a hurricane needs (a)   water for energy

15.

divergent boudry types create

a)

mid ocean ridges

b)

trenches

c)

faults

d)

rift valleys

16.

animal and plant cells have the same parts except

a)

cell wall

b)

chromosome

c)

chloroplast

d)

cytoplasm

17.

abiotic is

a)

living

b)

nonliving

18.

all (a)   things are made up at least of 1 cell

19.

a snake and a hawk both eat a mouse

this is an example of ...

a)

predation

b)

competition

c)

parasitism

20.

what is symbiosis

a)

species interacting with each other

b)

species adaptions

c)

species in their habitat

d)

species genetics