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Learning by Doing

Objective: To reinforce the concept of writing larger numbers in the standard form.
Materials Required: Chart Paper, pen and a scissor
Procedure:
• Take the help of internet, and find the masses of the planets of our solar system and their
distances form the sun.
• Make a table as shown below on a chart paper and note down the masses and the distances
in the table.

Name of Mass of the planet (in kg) Distance from the sun
the (in m)

planet Usual Form Standard Usual Standard
form form Form

Mercury 328,500,000,000,000,000,000,000 3.28 × 10 kg
23
Venus

Earth
Mars

Jupiter

Saturn
Uranus

Neptune
(a) Arrange the Standard form of masses of the planets in ascending order.

(b) Arrange the standard form of the distances of the planets from the sun in descending
order.

97 Exponents and Powers