Air, Water and Rocks Quiz

Sofia put an empty glass upside down in a bowl of water. She saw that water did not go inside the glass. Why did this happen?

1. The glass was too light.
2. The water was too cold.
3. The glass absorbed the water.
4. The glass already had air inside.

Answer: (d) The glass already had air inside.

Emma found a shiny black rock and used it to draw on paper. Which rock did she find?

1. Graphite
2. Quartz
3. Diamond
4. Sandstone

Answer: (a) Graphite

Which of the following activities will be most difficult to do without water?

1. Writing with a pencil
2. Cooking rice
3. Playing a board game
4. Watching television

Answer: (b) Cooking rice

Choose the correct option regarding the two statements written below. Statement 1: Rainwater harvesting helps to store rainwater so that it can be used later. Statement 2: Rainwater harvesting is only useful in dry areas.

1. Both the statements are incorrect.
2. Both the statements are correct.
3. Statement 1 is incorrect, but Statement 2 is correct.
4. Statement 1 is correct, but Statement 2 is incorrect.

Answer: (d) Statement 1 is correct, but Statement 2 is incorrect.

Which of these is a correct way to help conserve water?

1. Leave the tap running while brushing your teeth
2. Take shorter showers and turn off the tap when not in use
3. Use more water for cleaning than needed
4. Water plants in the midday sun when the water will evaporate quickly

Answer: (b) Take shorter showers and turn off the tap when not in use

Lily wants to help keep the water clean. Which of the following actions should she choose? 1. Throwing garbage into rivers and lakes 2. Using less plastic to reduce waste in water bodies 3. Dumping chemicals and oil into drains 4. Turning off taps when not in use

1. 2 and 4
2. 1 and 3
3. 3 and 4
4. 2 and 3

Answer: (a) 2 and 4

Which of the following is NOT a property of water?

1. Water is colourless and tasteless
2. Water can take the shape of a container
3. Water has a definite shape like a rock
4. Water can exist in three different forms

Answer: (c) Water has a definite shape like a rock

Why is coal called a "soft rock"?

1. It can be easily cut and broken.
2. It is made from melted lava.
3. It is the hardest rock on Earth.
4. It shines like a diamond.

Answer: (a) It can be easily cut and broken.

Below is a table showing different rocks and how they are formed. Which rock type is an example of Rock Y? Rock Type How it Forms Rock X Forms from colled lava or magma Rock Y Forms from layers of sand and mud pressing together over time Rock Z Forms when heat and pressure change one type of rock into another

1. Granite
2. Sandstone
3. Marble
4. Obsidian

Answer: (b) Sandstone

Which of the following statements about air are true? 1. Air takes up space. 2. Air has weight. 3. Air is made up of only oxygen. 4. Air helps in burning.

1. 1 and 3
2. 2 and 4
3. 1, 2, and 4
4. All of the above

Answer: (c) 1, 2, and 4