- Objectives
- Students will develop an understanding of change
over time.
- Introduction
- Vocabulary
- Orbit - the path one object
travels around another (earth around sun).
- Axis - imaginary straight
line through earth, around which the earth spins.
- North Pole -
northern most portion of the axis.
- South Pole - southern most
portion of the axis.
- Equator - circle around the
middle of earth that divides north from south.
- Hemisphere - the name given
to any half of the globe (north, south, east, or west.
- Program
- Draw a globe (round circle) on the board (or paper).
- Label North and South poles.
- Label equator.
- Identify each of those on the actual globe.
- Discuss how the earth orbits around the sun.
- Have one student stand in the middle of a space
holding a light (acting the role of the sun).
- Have another student hold the globe and walk in
a circle around the sun to show the path that the Earth takes.
- Make sure to show the students how when the north
is pointed away from the sun it is winter in the north and summer
in the south. If the north is pointed towards the sun it is summer
in the north and winter in the south. If they are equal, it is spring
or fall.
- Have the student holding the Earth move to a random
place around the sun and have others guess at what season it would
be for a given location on the globe.
- General
- Thought Questions
- How do you think your trees look when it's
almost winter? Answers will vary; gray, leafless, bare, (dead).
- What foods will animals eat in (a given season)?
Answers will vary based on season, animal, location, and what
is available - berries, leaves, nuts, other animals.
- What are the colors of the forest in October?
Orange, red, yellow, brown, and green.
- What are the different seasons? Spring, summer,
fall (autumn), winter.
- What are some differences and/or similarities
between the seasons? Answers will vary, use common sense.
- Why are there seasons? Angle of the Earth pointing
towards or away from the sun, light intensity, light angle.
- What is the weather like during the different
seasons? Hotter in the summer, more thunderstorms, colder in
the winter, more snow, more mud/rain in spring, frost in the
fall.
- When you go to bed in the summer is it light
or dark outside? Light.
- When you go to bed in the winter is it light
or dark outside? Dark.
|