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WorksheetsScience Reviewer Part 2
Total questions: 35
Worksheet time: 23mins
It it the most important and primary source of heat on Earth.
(a)
It contains much heat deep inside.
"E (a)
We use this energy to generate electricity and to power transportation like cars and planes. It is the burning of fossil fuels, burning of oil, natural gas and coal to generate energy.
"B______ F____
(a)
It is the flow of charged particles called electrons and protons
(a)
Materials that "allow" electricity to pass through.
Insulators
Conductors
Materials that "do not allow" electricity to pass through
Insulators
Conductors
Identify 5 Electrical conductors
rubber, glass, oil, diamond, dry wood
silver, gold, copper, steel, sea water
Identify 5 Electrical Insulators
rubber, glass, oil, diamond, dry wood
silver, gold, copper, steel, sea water
Objects that do not emit their own light.
Luminous object
Non-luminous object
Energy produced by vibration
Sound Energy
Heat Energy
Light Energy
Which of the following can we get electricity from wind?
Hydro Electric Power Plant
Geothermal Power Plant
Solar Power Plant
Windmill Farm
Which of the following can we get electricity from the sun?
Hydro Electric Power Plant
Geothermal Power Plant
Solar Power Plant
Windmill Farm
What is the main source of light and heat?
Water
Earth
Sun
Sky
Moving objects produce sounds. The molecules of the objectmove back and forth when they make a sound. This movement is called V (a)
The loudness and softness of a sound
Volume
Pitch
Rythm
How high or low a sound is
Volume
Pitch
Rythm
Sound travels through . . . . .
Sound waves
Voice
Air
Most of the sounds we hear travel through. . .
Choose all the correct answer
air (gas)
solid
floor
liquid
Sound waves bounce off from different surfaces when you shout in large empty spaces. The repeated sound in empty spaces is called: E (a)
Uses of Sounds
Awareness
Swimming
Entertainment
Medical Purposes
Most of the sounds we hear travel through. . .
Choose all the correct answer
air (gas)
solid
floor
liquid
It is the ability to do work. It allows us to perform our tasks and appeciate the things around us. E (a)
TRUE OR FALSE:
Light moves about 300,000 kilometers per second! That means light can go around the Earth more than 7 times in just one second
TRUE
FALSE
TRUE OR FALSE: Light is almost 1 milion times faster than sound,
TRUE
FALSE
a form of energy that helps us see things. It comes from sources such as the sun, light bulbs or flashlights.
ray
Light
When light travels, it moves in a straight line.
ray
Light
Light that is made by God : "N (a) Light
Light that is made by humans: "A (a) Light
Sources of Natural Light
Moon and Stars
Sun
Matches
Fireflies, glow worms,
Is when living organism naturally give off light.
Bioluminescence
Luminous
Where can you see Aurora Borealis?
Sweden, Norway
Iceland, Greenland and Canada
Philippines, America, China, Korea
What are the examples of Artificial Light
Light Bulb, Lamp,TV, Flashlight, Fireworks
Sun, Star and Moon
Objects allow light to pass through them.
Transparent Object
Transluscent objects
Opaque
Objects allow some light to pass through them.
Transparent Object
Transluscent objects
Opaque
Objects do not allow light to transmit through them. They absorb the light.
Transparent Object
Transluscent objects
Opaque
