8th grade Science Review Flashcards

1

scientific laws can be changed with new evidence

False
True

2

Smallest particle that makes up all matter

electron
atom
molecule
cell

3

Matter is not created or destroyed

Theory of Matter
Law of Conservation of Mass
Theory of Mass
Law of Gravity

4

What characterizes a good hypothesis

Stated like a fact
Includes dependent variable
All of these
Includes independent variable

5

Not a property of a metal

Brittle
Ductile
Malleable
Lustrous

6

The outcome variable is the

control variable
independent variable
dependent variable

7

A physical change will change the identity of the matter

False
True

8

Amount of room an item take up

density
volume
mass
matter

9

What is the amount of matter in an object

density
weight
matter
mass

10

The neutral particle in the nucleus of an antom

electron
proton
nucleus
neutron

11

The number of protons in an atom

One
average atomic mass
atomic number
atomic mass

12

observations that can be described with numbers

quantitative
qualitative
empirical
anomalous

13

An object will float in water if it is

the same density as water
more dense than water
less dense than water
big enough

14

What is a scientific theory

A possible answer
A statement of what happens
An opinion
An explaination

15

A compound can be separated by

chemical reaction
physical properties
chemical and physical means
can not be separated

8th grade Science Review

Questions 15

8th grade Science Review

Questions 15