science g 4/feb

Any substance give heat when burning is ……..

• Fuel

• Energy

• Heat

Air pollution is caused usually by ……

• Cooling of fuel

• Burning of fuel

• Warming of fuel

Used in operating cars ……

• Coal

• Gasoline

We have to conserve all forms of fuel

• True

• False

Sun is the main source of energy

• True

• False

Input energy in hair dryer

• Electric energy

• Kinetic energy

• Thermal

When you rub your hands ,you will feel

• Cold

• Warm

Curiousity rover explores

• Sun

• Earth

• Mars

Sun emits ………energy

• Light

• Sound

Wood is considered as ………fuel

• Fossil

• Bio