Available Answers

1. 1.

   Fill in the blanks.

   1. Metamorphic rocks are formed from ________________ or ________________ rocks.
   2. In a sugar solution, water is the ________________.
   3. ________________ and ________________ form a solution.
   4. ________________ are caused by the gravitational pull of the moon.
   5. Excessive rainfall for many days can cause ________________.
   6. 78% of the atmosphere has ________________ gas.
   7. ________________ is a dormant volcano.
   8. We see the entire side of the moon illuminated, when it is ________________ moon.
2. 2.

   Match the following.

   a. Crowbar	i. Soil conservation
   b. Liquids	ii. Protects us from ultraviolet rays
   c. Fishing rod	iii. Soil erosion
   d. Afforestation	iv.. Richter scale
   e. Ozone	v. Third class lever
   f. Ploughing hill sides	vi. Can flow
   g. Earthquake	vii. Under sea earthquake
   h. Tsunami	viii. First class lever

    

3. 3.

   Understand the analogy and fill in the blanks.

   1. Sandstone : Sedimentary :: Marble : _______________
   2. ______________ : Fixed shape :: Liquids : Take the shape of the container.
   3. Lever : _______________ :: Car : Complex machine
   4. Oxygen : Burning :: ____________ : Photosynthesis
   5. ______________ : Just above the earth's surface :: Ionosphere : Help radios to work
   6. Chlorination : Removes soluble impurities : : Sedimentation : ________________
   7. Axe : Wedge :: Ramp : _________________
   8. Earthquake : ________________ :: Bomb blast : Man-made calamity
4. 4.

   Differentiate between solar and lunar eclipse.
5. 5.

   Differentiate between solids and gases.
6. 6.

   Differentiate between first class lever and second class lever.