Class 5 Rocks and Minerals Worksheet 1

Class 5 Rocks and Minerals Worksheet

 

Section A – Fill in the blanks

 

1. Rocks are made up of __________.
2. The hot molten rock inside the Earth is called __________.
3. __________ is the hardest igneous rock used for buildings and flooring.
4. __________ is the only rock that can float on water.
5. Red Fort in Delhi is made of __________.
6. __________ rocks contain fossils of plants and animals.
7. __________ is used in making cement and chalk.
8. Obsidian looks like __________ and has sharp edges.
9. __________ rocks are formed by the cooling and hardening of magma.
10. The breaking down of rocks results in __________ formation.

 

Section B – Match the following

1. Granite – (a) Sponge-like rock
2. Pumice – (b) Contains fossils
3. Shale – (c) Used for cement
4. Limestone – (d) Coarse-grained igneous rock
5. Obsidian – (e) Used for ornaments
6. Sandstone – (f) Made of clay and mud
7. Magma – (g) Found under Earth’s surface
8. Conglomerate – (h) Contains pebbles
9. Lava – (i) Molten rock on Earth’s surface
10. Marble – (j) Used for statues

 

Section C – Very Short Answer Questions

1. What are rocks made of?
2. Name two igneous rocks.
3. Which rock is soft and used to make bricks?
4. Name the mineral found in limestone.
5. Which type of rock forms the Earth’s crust?
6. Name two uses of pumice.
7. What are fossils?
8. Name one sedimentary rock used as building stone.
9. Which rock is formed from shells of sea animals?
10. Write one use of obsidian.

 

Section D – Short Answer Questions

1. How are igneous rocks formed? Give one example.
2. How is sandstone formed and where is it used?
3. What is the difference between magma and lava?
4. Why are sedimentary rocks important?
5. Describe the appearance and use of granite.

 

Section E – Answer in Brief

1. Explain how sedimentary rocks are formed.
2. Write about pumice and its properties and uses.

 

Class 5 Rocks and Minerals Worksheet 1 Answer Key

 

Section A:

1. minerals
2. magma
3. Granite
4. Pumice
5. Sandstone
6. Sedimentary rocks
7. Limestone
8. glass
9. Igneous rocks
10. soil

 

Section B:
1-d, 2-a, 3-f, 4-c, 5-e, 6-b, 7-g, 8-h, 9-i, 10-j

 

Section C:

1. Rocks are made up of minerals.
2. Granite, Pumice.
3. Shale
4. Calcite
5. Igneous rocks.
6. Skin scrubber, dental abrasive.
7. Remains of dead plants or animals in rocks.
8. Sandstone
9. Limestone
10. Used for making surgical blades.

 

Section D:

1. Igneous rocks are formed by cooling and hardening of magma. Example: Granite.
2. Sandstone is formed by cementing sand particles; used in building monuments like Red Fort.
3. Magma is molten rock inside Earth; lava is molten rock on the surface.
4. They contain fossils and are sources of fuels like coal and petroleum.
5. Granite is coarse-grained, hard, light-coloured; used for buildings and flooring.

 

Section E:

1. Sedimentary rocks are formed when wind, water, or glaciers carry sediments that settle in layers. Over time, pressure hardens them into rocks. They often contain fossils.
2. Pumice is a volcanic rock with holes, making it very light. It floats on water and is used in scrubbing, polishing, and construction.