Question 1

Equal forces acting on an object in opposite directions

Accepted Answer

balanced forces

Question 2

Forces that cause a change in the motion of an object

Accepted Answer

unbalanced forces

Question 3

speeding up, slowing down, or changing direction

Accepted Answer

Acceleration

Question 4

convection currents in the mantle

Accepted Answer

What causes the plates to move?

Question 5

thunderstorms

Accepted Answer

A cold front causes cold weather and usually?

Question 6

warm

Accepted Answer

Hurricanes need____ water to survive.

Question 7

positive, 1

Accepted Answer

Protons have a _________ charge and a mass of ______ amu.

Question 8

negative, 0

Accepted Answer

Electrons have a _______ charge and a mass of _____ amu.

Question 9

neutral, 1

Accepted Answer

Neutrons have a _________ charge and a mass of _______ amu.

Question 10

Groups 1 and 17

Accepted Answer

The most reactive groups are?

Question 11

Group 18 (Noble Gases)

Accepted Answer

Which group is unreactive (stable)?

Question 12

Valence electrons

Accepted Answer

What part of a atom tells you if it is reactive or not?

Question 13

similar chemical properties

Accepted Answer

Elements in the same group(family) have....

Question 14

the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes

Accepted Answer

Law of Conservation of Mass

Question 15

1) The fit of the continents

Accepted Answer

evidence of plate tectonic theory

Question 16

The mechanism for the movement of continents

Accepted Answer

What did Albert Wegner never figure out before he died?

Question 17

1) volcanic mountain chain

Accepted Answer

Landforms at convergent boundaries

Question 18

mid-ocean ridge, rift valley

Accepted Answer

Landforms at divergent boundaries

Question 19

1) fault line

Accepted Answer

Landforms of Transform Boundaries

Question 20

Mountains are formed

Accepted Answer

When two continental plates collide

Question 21

Island arcs (volcanic islands) form

Accepted Answer

When two oceanic plates collide:

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