BACKGROUND:
There is movement throughout the
Universe. Grand scale movement was created by the origin of the
Universe. Movement, however, can also be on a small scale. This includes
the motion on the Earth, such as walking or riding a bike.
Explore what the science of movement
is all about. All things move, whether felt or not. Even if we stand
still, the Earth is moving, and we are moving with it. People, animals,
and machines move in different ways.
Machines have been developed to
capture motion. We use machines to drive, to fly, or to do gardening.
Motion is used to create exciting rides at amusement parks. We are a
world that depends on movement.
PROCEDURE:
- Discuss how movement can be accomplished in
various ways. Humans move (walk) by the use of leg muscles. Without
muscles, people could not walk. Many animals have muscles in 4 legs.
Some organism use other mechanisms to move, such as swimming in
water, and there are organisms like plants and fungi that do not
move.
- Machines rely on wheels to move. It is very
difficult to move a heavy box. However, when you put wheels on it,
moves easily. Motion can be viewed as the change of position of a
body within a reference system. You may be standing still, yet the
Earth is rotating on its axis, so you really are moving!
- Ask students to find objects that move on
Earth. Hopefully they will mention cars, scooters, and other
objects. Movement is caused by direct mechanical force (scooters or
bicycles) or by reactions of substances that drive machines to work
(cars or trains). Movement is all around us!.
- Give students the coloring exercise on the
type of motion of some animals and machines. Students will learn in
later grades, that motion and gravity are fundamental forces
throughout the Universe.
