Malini Seshadri Solutions for Chapter: Changes Around Us, Exercise 3: STEP UP
Malini Seshadri Science Solutions for Exercise - Malini Seshadri Solutions for Chapter: Changes Around Us, Exercise 3: STEP UP
Attempt the practice questions on Chapter 6: Changes Around Us, Exercise 3: STEP UP with hints and solutions to strengthen your understanding. CoNCERT Science 6 solutions are prepared by Experienced Embibe Experts.
Questions from Malini Seshadri Solutions for Chapter: Changes Around Us, Exercise 3: STEP UP with Hints & Solutions
i) Salt, Cement, Sand and Sawdust were playing together when Water came along. "May I join you?", asked Water. Following are the responses of the four:
(a) "No.," said Salt. " My mother said that if I play with you I will (dissolve / contract)."
(b) "No.," said Cement. " My mother said that if I play with you I will (harden / melt)."
(c) "No.," said, Sand. " My mother said that if I play with you I will (dissolve/settle at the bottom)."
(d) "No.," said Sawdust. " My mother said that if I play with you I will (evaporate/float on the top)."
Which of the four changes described in (i) is an irreversible change? Explain your answer.
Two glasses are filled with water to the same level. Half a spoonful of oil is poured into one of them.
The two glasses are then placed on a window sill. What will you observe after two days?
(i) The water level in the glass without oil is higher than the other.
(ii) The water level in the glass with oil is higher than the other.
(iii) Both glasses have the same amount of water.
Give reasons for your answer.
Read the paragraph and select the correct answers.
Early in the morning, you may find dewdrops on leaves and grass. When the Sun rises, the dewdrops disappears.
Where does the dew come from?
Read the statement and select the correct answer.
Early in the morning, you may find dewdrops on leaves and grass. When the sun rises, the dewdrops disappear.
Which process causes the formation of dew?
Early in the morning, you may find dewdrops on leaves and grass. When the Sun rises, the dewdrops disappears.
Where does the dew go when it disappears from the leaves and grass?
Read the paragraph and select the correct answer.
Early in the morning, you may find dewdrops on leaves and grass. When the Sun rises, the dewdrops disappears.
Which process causes the dew to disappear later in the day?
Read the paragraph and select the correct answer.
Early in the morning, you may find dewdrops on leaves and grass. When the Sun rises, the dewdrops disappears.
What type of change is this?
Some changes in our bodies take place naturally, While others take place due to external factors. Identify the type of change and fill in the table.
| Change | Natural/ Not natural | Reversible/ Irreversible |
| (i) mending or growing bones | ||
| (ii) breaking bones | ||
| (iii) getting a haircut | ||
| iv) hair growing longer | ||
| (v) trimming fingernails | ||
| (vi) piercing earlobes |
