BACKGROUND:
Children "discover"
by using all their senses. Students have been introduced to the five
senses of hearing, touching, smelling, seeing and tasting. Scientists and
inventors have invented “tools” that help us to experience each of the
senses in more detail.
The sense of sight probably
has the most tools to help us observe and discover new objects. Telescopes
help us see the rest of the Universe, that we cannot feel, smell or taste.
We have instruments that can detect sounds that might help us understand
our Solar System or the inside of our Earth. Microscopes help us
look at little things that we cannot see with the naked eye.
Sometimes people who have lost
their sense of feeling have electrodes put into their head to feel again.
Tools help us observe and feel our world.
PROCEDURE:
- Ask students
how they can see better. As students respond, draw or write the "tool"
they mention. Display pictures of the items.
- The following is
a guide to help direct students comments. Make sure you draw a simple
stick figure so students have a guide when they draw. Reinforce the
concept that tools of discovery help scientists to see the world better.
Have students draw a picture of each of the instruments on the worksheet.
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eyeglasses
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helps people see
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hand lens
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enlarges things
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microscope
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makes little things
large
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telescope
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makes very far things
seem near
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binoculars
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makes far things seem
near
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cameras
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records what we see
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