Mid Year Review

1

300

What are two ways to find the VOLUME of an object?

Displacement or LxWxH

300

What do REFLECTING telescopes have that REFRACTING telescopes do not?

Mirrors

300

Superposition is the idea that __________ fossils are found closer to the surface.

Newer

300

Name TWO of Newton's thee laws of motion

1) Object in motion remains in motion until an outside force acts on it

2) Force = Mass x Acceleration

3) Every action has an equal but opposite reaction

300

Elements are PURE SUBSTANCES - what does this mean?

They are made of only one type of atom

2

300

The longest stage of a star's life is known as the _____ ____________

Main Sequence

300

The breaking down of a material over time due to weather, foot traffic or water is known as...

Weathering or Erosion

300

On a topographic map, lines that are more spread apart indicate what about the slope of the area?

More gradual (Less steep)

300

the layer of the atmosphere that we live in is known as the _____________

Troposhpere

300

If an element has 5 open bond sites in its outer shell, how many VALENCE electrons does it have?

3

3

300

Rain, clouds and generally poor weather are indicators of what type of pressure system moving in?

LOW pressure

300

Which two celestial bodies control Earth's tides?

Sun and Moon

300

The energy of an object in motion is known as ______ ____________

Kinetic Energy

300

When a divergent boundary occurs on the ocean floor, opening up to the mantle and allowing magma to rise up, this is called ______ ______ __________

Sea Floor Spreading

300

Whose theory suggested that Earth was the center of the universe and all planets (and the sun) orbited around it?

Ptolemy

4

300

The tectonic plates move due to a phenomenon of cool magma falling as warm magma rises - we call this a _________ _________________

Convection Current

300

The smallest whole piece of matter is known as a(n)...

Atom

300

Speed = ___________ divided by ____________

Distance/Time

300

What is the difference between ABSOLUTE MAGNITUDE and APPARENT MAGNITUDE?

Apparent = How bright a star looks from earth

Absolute = How bright a star actually is

300

A rock has formed underground due to years of heat and pressure. According to the rock cycle, what is one option that could happen to the rock over the next few million years?

It could:

Subduct into the mantle

Uplift to the surface

Remain where it is

5

300

Measuring the depth of the ocean is difficult - we can't get to the bottom but we can send radar/sonar down to measure how deep it is. Observing something without physically touching it is known as _______ ___________.

Remote Sensing

300

The innermost layer of the earth, which we assume is a dense ball of metal (like iron), is known as the _________

Core

300

Why does Mars appear to move backwards in our sky for a few months out of the year?

It moves slower than Earth, so we lap it in orbit

300

Which star would be HOTTER - An orange one or a white one?

White

300

Give TWO examples of Chemical Changes and TWO examples of Physical Changes

Answers will vary