School Earth Science Lab

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This apparatus demonstrates the relative movements of the Sun, Earth and Moon. Thus causes of various phenomena can be understood such as seasons of the year, day and night, changing length and direction of different shadows, seasons, phases of the Moon, eclipse etc.

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Experiments :

• Planetarium: Exp-1 View all major stars and constellations in your hemisphere.
• Earth-centred model :Exp-2 Demonstrate more complex principles with the earth-centred model.
• SCIENCE, CLASS VIII Chapter 1

Additional subjects to study with the star dome:

• The ecliptic and the Zodiacal constellations. How the planets appear to move against the night sky. Use of the Helios outside at night - where should the stars appear in the sky.

Product Details:

An illuminated three dimension model of the Sun and planets teaches planet identification, sizes, distances and colors. The planets may be set by month to show their relative positions. A sturdy base supports the 6-in. diameter Sun with the outer planet 18 inches from the Sun. Illustrated study guide includes planet position tables. All plastic, with electric fitting to illuminate the Sun.

Key Topic4 Damping oscillation.4Corresponding ratios.4Heavily or under damped oscillations.4Energy dissipation.4Relation between spring constant in series and parller.

Learning Objectives/experiments< To investigate the damping effect of air, water, oil or glycerinon an oscillating spring.< To investigate damping effect by changing spring constant(by connecting spring in series and parallel)
Scope of delivery4 2 Spring4 2 Support Base4 2 Support Rod4 1 Support Beam4 2 Mounting Rod4 1 Slotted Mass Set4 1 Rotary Position Sensor4 1 Data logger4 1 Beaker4 1 Bosshead4 1 Hanging strip4 1 Thread roll4 1 Sensor cable (mini USB)4 1 Software CDSPECIFICATIONS
Feature1. Rotary motion sensor with different diameters of pulley(0.025, 0.015, and 0.005 m).2. Data Logger with real time data plotting facility, up to 100Ksampling rate.3. Free data analyzing software.4. Series and parallel combination of spring is possible.