Science activity, suitable for students in the fifth year of elementary school, with questions about Electric Energy.
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SCHOOL: DATE:
PROF: CLASS:
NAME:
All matter is made up of tiny particles, which cannot be seen under a microscope. These particles have electrical charges, which can be positive or negative.
All bodies have a certain amount of electrical charges, but the amounts of positive and negative charges are equal and evenly distributed most of the time. In this way, it is difficult to perceive electricity. When there is a difference in positive and negative charges, we can notice the difference in electricity in objects.
By rubbing a balloon with a flannel, we remove electrical charges. This makes you electrified and starts to attract the strands of hair.
With the difference in the amount of positive and negative electrical charges on an object, you can get electrical energy.
Electric energy is the main source of energy used in the world. Equipment such as a computer, television, electric shower, refrigerator, electric heater, run on electricity. In general, this type of energy, which we use at home, is generated in plants. In hydroelectric plants, water moves turbines that generate electricity.
Cells and batteries are important energy generators, as they allow the use of equipment in places where there is no electricity distribution network. Cells and batteries generate electrical energy through the chemical energy of the materials that make them up. They must be highlighted in suitable places, as they contain toxic substances.
Buriti more – Science. Publisher: Modern.
1) What is matter made of?
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2) How does the amount of electrical charge in bodies sound?
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3) How can we perceive electricity in objects?
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4) Name 3 objects that use electricity:
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5) Where is most of the electrical energy we use produced?
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6) How is the energy from cells and batteries generated?
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