Show:
Vocabulary
True or False
Multiple Choice
Inquiry Skills
Critical Thinking
100

A landform that forms where lava flows on Earth's surface

What is a volcano?

100
Glacier is a large mass of moving ice. (True/False)
True
100
Which of Earth's layers includes the land that makes up the continents and the land under the oceans?

A. crust    B.inner core    C. mantle     D. outer core

A. crust.
100
Compare canyons and valleys.  
Canyons are narrower than valleys and let less light pass through.
100
Although there are many volcanoes in Japan, why are people still living there?
1) The soil around the volcanoes is very rich in minerals and good for farming.

2) Some volcanoes are dormant or inactive.

3) There is a good warning system in Japan.

200
The remains or traces of an organism that lived long ago
What is fossil?
200
Soil erosion is the dropping of soil and rock by rivers. (True/False)
False.  It is deposition.
200
Where do most earthquakes occur?

A.  mantle     B.  inner core     C. along plate boundaries    D. oceans

C. along plate boundaries
200
What are most fossils found in the ocean?
It is because most fossils are preserved in sedimentary rocks.  And there is less erosion in the ocean.
200
What kind(s) of volcanoes are the most dangerous and why?
Composite volcanoes and cinder cone volcanoes.  They both can erupt violently.
300
The shape of landforms in an area
What is topography?
300
Deltas and dunes both form from the movement of sediments through the rivers. (True/False)
False.  They both form from the deposition of sand and sediments. But only deltas form at the end of rivers.
300
What happens to light when it hits a mirror?

A. It reflects.    B. It refracts     C. It is absorbed     D. It passes through.  

A.  It reflects.
300
What can scientists learn from studying fossils?
1) The evolution of different species

2) Some ancient species that have become extinct

3) Climate change

4) Change of topography

300
Given one example of how people use refraction in their daily life.
1) contact lenses

2) cameras

3) diamonds 

400
The way heat travels through materials that are touching
What is conduction?
400
A pan being heated on a hot electric stove burner through conduction. (True/False)
True.
400
Vivian has been using her computer for a long time and the CPU got really hot.  What type of heat is it?

A. radiation    B. waste heat     C. conduction     D. solar power

B. waste heat
400
Compare two types of heat transfer: conduction and convection.
Conduction is caused by the direct contact between a hot object and a cooler object.

Convection happens when there is a current passing heat in liquids or gases.

400
What are some of the problems caused by the use of fossil fuels?
1) air pollution

2) global warming and climate change

500
The change of energy from one form to another
What is energy transfer?
500
A big cup of hot water cools faster than a small cup of hot water because of the larger surface area that is exposed to air.  (True/False)
False.  The bigger cup of water has a large volume to store heat than the smaller cup.  The ratio of the surface area to the volume is smaller than the smaller cup. 
500
Which example of matter would carry heat by convection?

A. sand    B. plastic     C. water     D. shells

C. water.
500
Compare reflection and refraction.
Reflection is the bouncing of light off a surface.  Refraction is the bending of light when it passes through a different medium. (e.g. from air to water, from air to solid, etc.)
500
Give 4 examples of renewable energy resources that people are using nowadays.
1) solar power

2) hydroelectric power

3) wind power

4) geothermal power