It makes china rose into a dark pink(magenta). 4. It does not give any colour change with litmus paper. 5. It is sticky to touch. LO. Links process and events with causes. Q.2 Give reasons for the following statements. 1. Penguins can easily live in the polar regions.(2)2. The winds flow from the sea towards the land in summer.(2)3. Place a crumpled piece of paper on the mouth of an empty bottle and it comes outside when you blow air inside the bottle.(1) LO. Applies learnt scientific concepts in everyday life. Q.3 Answer the following questions. 1. What steps will you take to prevent rusting in your cycle? (2) 2. How will you help your neighbours when cyclone approaches towards your village/town? (3)LO. Explains the process and events. Q.4 Explain the following process/events. 1. Put two to three iron nails in the blue solution of copper sulphate and after 15 to 20 minutes the colour of the solution turns green. (2) 2. Give the basic difference between weather and climate. (2) 3. The red litmus paper turns blue when it is dipped into the solution of magnesium oxide with water.

It makes china rose into a dark pink(magenta). 4. It does not give a

1.	It makes china rose into a dark pink(magenta). 4. It does not give any colour change with litmus paper. 5. It is sticky to touch. LO. Links process and events with causes. Q.2 Give reasons for the following statements. 1. Penguins can easily live in the polar regions.(2)2. The winds flow from the sea towards the land in summer.(2)3. Place a crumpled piece of paper on the mouth of an empty bottle and it comes outside when you blow air inside the bottle.(1) LO. Applies learnt scientific concepts in everyday life. Q.3 Answer the following questions. 1. What steps will you take to prevent rusting in your cycle? (2) 2. How will you help your neighbours when cyclone approaches towards your village/town? (3)LO. Explains the process and events. Q.4 Explain the following process/events. 1. Put two to three iron nails in the blue solution of copper sulphate and after 15 to 20 minutes the colour of the solution turns green. (2) 2. Give the basic difference between weather and climate. (2) 3. The red litmus paper turns blue when it is dipped into the solution of magnesium oxide with water.
Answer» Q4. 2. Whereas weather refers to short-term changes in the atmosphere, climate describes what the weather is like over a long period of time in a specific area. Different regions can have different climates.Q4. 3. Magnesium forms magnesium OXIDE on burning in presence of air. It is a combination reaction between two elements. Magnesium oxide is basic in nature and thus its aqueous SOLUTION turns RED litmus BLUE.

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