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Online Quiz (Worksheet A B C D)

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Upper Elementary Science - II
4.15 Introduction to Energy

Almost everything around us makes use of energy. The cars, planes, computers, televisions, and all other machines need energy to function. Energy is defined as "the ability to do work."

What is work? Work means moving something, lifting something, warming something, lighting something.

Where does energy come from? There are many sources of energy including:

  • Electricity
  • Biomass Energy - energy from plants
  • Geothermal Energy
  • Fossil Fuels - Coal, Oil and Natural Gas
  • Hydro Power and Ocean Energy
  • Nuclear Energy
  • Solar Energy
  • Wind Energy
The sun is the most abundant source of energy. Energy from the sun gives us light during the day. It helps plants grow. Plants store food which is eaten by animals. That is how animals get their energy. The food we eat contains energy. We use that energy to work and play.
Directions: Answer the following questions.
Q 1: Biomass energy is the energy from ______.

Q 2: Energy is the capacity to do work.

Q 3: Hydro-energy is the energy from _________.

Q 4: The _____ is an abundant source of energy.
Wind moon

Q 5: Human beings require ____ to do work.

Q 6: Plants require ______ to make food.
wind energy
solar energy
nuclear energy

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Question 8: This question is available to subscribers only!

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