Matter and Its States

Q.

Why do seeds need soil to germinate?

Q. (1)

Unscramble the following jumbled word related to soil. ​

a) SUHUM

(2)
Unscramble the following jumbled word related to soil. ​

(b) ILOS FIPROLE

(3)
Unscramble the following jumbled word related to soil. ​

c) ZOINORH

(4)
Unscramble the following jumbled word related to soil. ​

d) MOAL

(5)
Unscramble the following jumbled word related to soil. ​

e) GINRHETWEA

(6)
Unscramble the following jumbled word related to soil. ​

f) ATONIERPCL

Q.

Find odd one out - water, ice, water vapour, aquifer

Q.

Which of the following is wastewater?

1. Water trickling from a damaged tap.

2. Water in a pond.

3. Water flowing in a river.

4. Water coming out of a laundry.

Q.

One day you and your friends were discussing about the matter. He believes that matter is continuous like a block. Initially you have also agreed with him but later one observation changed your perception about matter. Now you believe it is made up of discrete particles. The observation was

1. Evaporation of water

2. Complete dissolution of salt in water

3. Freezing of water

4. Salt settles at the bottom of the glass.

Q. Sarah demonstrated a magic trick by rubbing a plain white paper with a handkerchief. It was observed that green letters appeared on the paper after rubbing. Which of the following materials might have been used by her in the magic trick?

1. Hydrochloric acid and methyl orange
2. Soap and red cabbage juice
3. Sulphuric acid and phenolphthalein
4. Vinegar and turmeric

Q.

Question 18

How can you observe the three forms of water in (a) nature and (b) at home?

Q. Sandy soil dries out quickly and is low in plant nutrients.

1. False
2. True

Q. Which amongst the following is incorrect about sandy soil?

1. Has large pores
2. Rich in organic matter
3. Well suited for cactus
4. Poor water retention capacity

Q. Matter occupies space and has mass.

1. True
2. False

Q. Which amongst the following is incorrect about sandy soil?

1. Poor water retention capacity
2. Well suited for cactus
3. Has large pores
4. Rich in organic matter

Q. Which of the following can be categorised as matter?

1. Desk
2. Thoughts
3. Pen
4. Book
5. Oil
6. Time
7. Gravity
8. Water

Q.

Which of the following is not a matter?

1. Chalk

2. Energy

3. Soil

4. Car

Q. Which among the following has the strongest intermolecular force of attraction between its particles at the room temperature?

1. Nitrogen
2. Mercury
3. Iron
4. Chalk

Q. Matter is anything that has and occupies .

1. mass
2. space
3. gaps
4. impurities

Q. Which of the following can exist in all three states of matter?

1. Glass
2. Stone
3. Water
4. Paper

Q. Which among the following is added to disinfect the water?

1. Chlorine
2. Sulphur
3. Nitrogen
4. Oxygen

Q. Which amongst the following is incorrect about sandy soil?

1. Poor water retention capacity
2. Well suited for cactus
3. Rich in organic matter
4. Has large pores

Q. Which of the following is not a source of wastewater?

1. Hospitals
2. Water wells
3. Houses
4. Industries

Q. Which among the following disease does not caused by wastewater?

1. Cholera
2. Typhoid
3. Malaria
4. Diarrhea

Q. Which of the following is the last step in the wastewater treatment?

1. Screening
2. Chlorination
3. Segregation
4. Aeration

Q. Which amongst the following is incorrect about sandy soil?

1. Has large pores
2. Well suited for cactus
3. Rich in organic matter
4. Poor water retention capacity