3rd Grade ICSE

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Prepared by: learnloophq@gmail.com

Last edited 37 days ago by Learn LoopHQ.

Chapter: 10. Sun As A Natural Resource

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Answers:

The problem illustrated in this picture is a dripping faucet, which indicates water leakage.

This situation is considered wasteful because every drop adds up over time, leading to a significant loss of clean, usable water. Wasting water also means wasting the energy that was used to treat, pump, and heat that water before it reached the faucet.

This problem can be fixed by repairing or replacing the faulty faucet. Fixing it relates to the broader concept of conservation of energy and resources, specifically water conservation, which is essential for preserving our planet’s limited natural resources.

Answers:

The primary energy source being used in this picture is solar energy, which comes directly from the Sun.

The devices shown on the roof are solar panels, which are made up of many solar cells. These solar cells have the special ability to convert light energy from the sunlight directly into electrical energy, which can then be used to power the house.

This type of energy is considered renewable. It is renewable because the Sun is an inexhaustible source of energy; it will not run out, ensuring a continuous supply of energy for a very long time.

Answers:

The picture most likely depicts the summer season. This is indicated by the sunny day and the child eating watermelon, which is a common and refreshing fruit enjoyed in hot weather.

The weather influences the food choice because watermelon is a fruit with high water content, making it very hydrating and cooling. In hot summer weather, people prefer to eat foods and drink beverages that help them stay cool and hydrated, fitting the characteristics of watermelon.

In this hot and sunny weather, the child would be most comfortable wearing thin and light-coloured cotton clothes. These types of clothes help reflect sunlight and allow air circulation, which keeps the body cool.

Answers:

The energy sources depicted on the left side of the image are the Sun (solar energy), wind (wind energy from turbines), and water (hydroelectric energy from the river and dam).

The energy sources depicted on the right side of the image are coal (from the mine) and petrol/oil (from the drilling rig).

The key difference is that the energy sources on the left are renewable, meaning they are naturally replenished and will not run out, providing energy for a very long time. The sources on the right are non-renewable, meaning they are limited in amount, take millions of years to form, and will eventually be depleted.

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