Page 178 - SCIENCE DLP T6 SK (SEMAKAN 2017)

Eclipse Simulation Model

Aim: To describe the eclipse phenomena

Apparatus and materials: torch, a pin, scissors, ruler, protractor, transparent
plastic, modelling clay, skewer stick, white-coloured card

Be careful when using
Steps: scissors and pins.

1. 2. 3.

1.5 cm
12 cm

Cut the transparent Shape the modelling clay Stick a pin to the edge of the
plastic into a circle with into a sphere. Then, stick transparent plastic using
the diameter as shown the sphere to the centre of modelling clay.
in the picture. the rounded plastic.

4. 5. 6.

30°

Insert the skewer stick Conduct the activity in Hold a piece of white card
into the sphere at an a dark room. Place the facing the eclipse model
inclined angle torch on the table. and the torch. Observe
of about 30°. the formation of the
shadow of the model.

7. Conduct the eclipse simulation and describe the occurrence of
an eclipse of the Sun and an eclipse of the Moon.

Questions:
1. What do the pin, spherical modelling clay, and torch represent in
the simulation above?
2. What positions of the Moon, Earth, and the Sun would cause an
eclipse of the Moon and an eclipse of the Sun to occur?

10.1.1,
170 10.1.2,
10.1.5