Good morning Miss Battista's grade 3
class!
As you know, there
are two basic types of forces that cause movement. As we have seen in class,
contact forces involve direct interaction (pushes and pulls between
surfaces that are in direct contact). Non-contact forces include magnetic
and gravitational forces and involve interaction at a distance. As a class, we
have explored the effects of forces from sharing our "invention
designs", and we have also seen ways in which forces, including forces in
nature, cause objects to move.
Watch this video clip from Bill Nye the Science Guy as he
explains forces of movement. This may help you have a better understanding of
what we have been learning in class.
Parents:
The students have
been learning about various types of forces and movement within the
environment. The students were given a task in groups in which they had to
design and build their own machine that would be fully functional in moving
objects. This unit is in line with the Ontario curriculum standards under the
science and technology strand fro grade 3. It states that:
- 2.2. Students will investigate forces that cause an object
to start moving, stop moving, or change
direction
- 3.1. Students will identify a force as a push or a
pull that causes an object to move
