Available Answers

1. 1.

   Tick (√) the correct answer.

   1. Granite/Sandstone is an igneous rock.
   2. Plants use oxygen/ carbon dioxide gas for photosynthesis.
   3. Terrace farming helps to erode/conserve soil.
   4. Shale /Marble undergoes metamorphosis to form slate.
   5. The troposphere/exosphere is the lowest layer of the atmosphere.
2. 2.

   Write the scientific term for.

   1. Hot molten rock present in the volcano.
   2. The periodic rise and fall in the sea water.
   3. The sudden shaking of the earth's surface.
   4. First Indian satellite.
   5. The blanket of air that surrounds the earth.
3. 3.

   Use the words oxygen, nitrogen and other gases to fill the boxes provided.

   

4. 4.

   List two properties of air.
5. 5.

   Draw a diagram showing a solar eclipse.
6. 6.

   How is tsunami caused?