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Elementary Lighted Planetarium
Beginning model shows individual concepts, one at a time
Supplier: Science First 6533040
Includes: Instruction book
Description
Earth and moon move separately by hand. The ladder chain and gear drive is used solely to keep the axis of the Earth point at a 23.5° angle toward the North Star.
Demonstrates several concepts:
- The reason for the occurence of night and day
- The variation in the length of daylight
- The movement of the Earth around the sun from west to east
- Why only one side of the moon is seen from the Earth
- How eclipses of the sun and moon occur
- The cause of the phases of the moon
Order Info
- Height: 12 in. (30.5cm)
- Arm length: 17 in. (43cm)
- Sun: 5.75 in. (14.5cm)
- Earth: 4 in. (10cm)
- Globe color: Light blue or black oceans
- Electrical requirements: 110V
Specifications
Beginning model shows individual concepts, one at a time | |
30.48 cm | |
Elementary Lighted Planetarium |
Instruction book | |
12 in. | |
Each |
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