We CAN'T SEE through transparent materials. True or false?
False. We CAN SEE:
Lght travels FASTER than sound. True or false?
True
Renewable or non-renewable? "They are UNLIMITED and DON'T POLLUTE (contaminate) air and water"
Renewable
Light travels VERY SLOWLY. True or flase?
False. It travels VERY FAST.
What is the name of this phenomemon?
Refraction
What is the name of this phenomemon?
Reflection
Living and non-living things need energy. True or false?
True
We (humans) need energy to......
Run, eat, dance, write, study, do the homework...
A FROSTED GLASS is an example of translucent material. True or false?
True.
A radiador has..........energy.
Thermal
Renewable or non-renewable? "They are LIMITED and will run out in the future"
Non-renewable
In big cities, the traffic, the constructions, the people talking, etc, create ....................
Noise pollution.
Say 3 examples of renewable energy sources.
Solar energy, wind energy, hydroelectric energy and biomass.
Sound comes from vibrations. These vibrations produce..........that travel through ........., .......... and other materials.
Waves/ Air/ Water.
Renewable or non-renewable? "They POLLUTE (contaminate) air and water"
Non-renewable
A bird flying has...........energy.
Kinetic
Batteries give us............energy.
Electrical
The Sun produces............ and..........energy.
Light and thermal.
Light CAN'T TRAVEL through opaque materials. True or false?
True.
Digestion is a natural process that produces..............energy.
Chemical
A person playing the piano produces..............energy.
Sound