cl tt worksheet - the progressive teacher · 37. cl t worksheet. m ms 20. s igital rivate limited i...

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W O R K S H E E TCLASS II: MATHEMATICSMAX MARKS: 15

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W O R K S H E E T CLASS II: MATHEMATICSMAX MARKS: 15

The Progressive Teacher © DS Digital Private Limited I Photocopying permitted

Number of Equal Groups Number of Each Groups How Many in Air?4 8 8+8+8+8 =

Number of Equal Groups Number of Each Groups How Many in Air?2 9 9+9 =

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W O R K S H E E TCLASS II: MATHEMATICSMAX MARKS: 15


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W O R K S H E E T CLASS II: MATHEMATICSMAX MARKS: 15


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W O R K S H E E TCLASS V: EVSMAX MARKS: 20


STATES OF MATTERTick ( ) the correct answer

1. Which of the following is not a property of matter? a. It occupies space c. It is composed of atoms b. It has mass d. Its exists only as solid

2. The molecules are most densely packed in a a. Solid c. Gas b. Liquid d. Plasma

3. The metal that exists as liquid at room temperature a. Nickel c. Gold b. Aluminum d. Mercury

4. What happens when a liquid is placed in a vessel? a. It takes the shape of the vessel b. It does not occupy any space c. It evaporates d. It molecules get densely packed

5. Which two states of matter are involved, when ice melts to water?

a. Liquid and gas c. Solid and gas b. Gas and solid d. Solid and liquid

6. Solid carbon di oxide directly changes into vapour, this is called

a. Sublimation c. Condensation b. Evaporation d. Precipitation

7. In which state of matter do the molecules spread out until they fill the container, no matter how big this container is?

a. Liquid c. Solid b. Gas d. Plasma

8. Which state of matter is the easiest to compress? a. Liquid c. Gas b. Solid d. Ice

9. Which one of the following statements is true? a. In gases the atoms are far apart. b. In liquids the atoms are packed closer together c. In solids the atoms are tightly packed with no spaces in between d. All the above

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W O R K S H E E T CLASS V: EVSMAX MARKS: 20


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W O R K S H E E TCLASS V: EVSMAX MARKS: 20


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W O R K S H E E T CLASS V: EVSMAX MARKS: 20


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W O R K S H E E TMAX MARKS: 20


a. Can of cola: Solid: Aluminum can, liquid: Cola drink, gas: carbon dioxide present in it

b. Football; solid: the rubber football, Liquid: none, gas: Air inside it

c. Human body: solid: bones, Liquid: blood, Gas: Carbon dioxide and oxygen

14. The students will draw 10 molecules for solid that are compactly arrangedFor liquid 10 molecules will be loosely arranged For gases, 10 molecules will be randomly arranged

The Varna Ashrama

A: B: C:D:

34



1 1

2 1

3 1

The features of the Lion

Capital of Ashoka signify

A: Four

lions

B: Animals

on the

abacus

C: Chakra D: Motto

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36



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W O R K S H E E TCLASS IX: CHEMISTRYMAX MARKS: 20


9. Choose the correct option when the following substances are arranged according to an increasing force of attraction between the particles:

[i] Mustard oil, [ii] Sugar, [iii] Oxygen (a) [i][iii] (c) [iii][ii]

10. A liquid has (a) Definitevolumeanddefiniteshape (b) Definitevolumebutnodefiniteshape (c) Nodefinitevolumebutdefiniteshape (d) Nodefinitevolumeandnodefiniteshape

11. Match the following as per their correlative property:

Column I Column II

(i) Gases (a) Diffusion

(ii) Sublimation (b) Liquid→vapour

iii) Evaporation (c) Dry ice

(iv) Intake of oxygen by aquatic animals during respiration

(d) High compressibility

State whether the following statements are True or False:

12. Liquid and gases take the shape of the container.

13. Evaporation is a surface phenomenon.

14. A sample of water boils at 375K; it freezes at 273K under the same pressure.

Answer the following questions:15. Name two gases which are supplied in compressed form in

a home and to run a vehicle.

16. Write the name of a solid which can change its shape.

17. What is the term used for change from solid state to liquid state?

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W O R K S H E E T CLASS IX: CHEMISTRYMAX MARKS: 20


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W O R K S H E E TCLASS IX: CHEMISTRYMAX MARKS: 20


9. Which part of Dalton’s original atomic theory must be modified with the discovery of isotopes?

(a) Atoms combine with other atoms in whole number ratios to form compounds.

(b) All atoms of a given element are identical. (c) Matter is composed of atoms. (d) Atoms are of various kinds. There are as many kinds of

atoms as there are elements.10. Find out the correct information of the question given

below. Q. one mole of carbon dioxide gas at STP contains: [i] 44g of CO2 [ii] 3g atoms of CO2 [iii] 22.4 L of CO2 [iv] 6.023 x 1023 molecule of CO2 [v] 6.023 x 1023 atoms of C (a) [i] (b) [i], [iv] (c) [i], [iii], [iv], [v] (d) [ii]

11. Match the following as per their correlative property:

Column I Column II[i] Law of constant

proportions(a) H2O, SO2, H2S

ii] Law of multiple proportions(b) 12 g of

12 6 C

[iii] Law of reciprocal proportions

(c) J.L. Proust

[iv] Avogadro number (d) CO, CO2

State whether the following statements are True or False:12. Atoms are electrically neutral.

13. Any electrons of an atom can participate in a chemical reaction.

14. The molecule of an element contains two (or more) similar or different atoms.

Answer the following questions:

15. Why does an atom M and its ion M+ have the same mass?

16. Write the name and symbols of isotopes of hydrogen.

17. Calculate the formula unit mass of Ca(OH)2.

12 6

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W O R K S H E E T CLASS IX: CHEMISTRYMAX MARKS: 20


10. Ifanelementhasanelectronicconfiguration2,8,1thenwhat is the valency of the element?

(a) 2 (b) 8 (c) 1 (d) 0

11. Matchthefollowingaspertheircorrelativeproperty:

ColumnI ColumnII

[i] Element having atomic number 6 mass number 13

(a) 14 6 C

ii] Argon (b) 12 g of 13 6 C

[iii] 12 6 C (c) Hydrogen

[iv] One proton and one electron (d) Calcium

StatewhetherthefollowingstatementsareTrueorFalse:12. All the isotopes are electrically neutral.

13. The mass numbers of the isotopes of an element are the same.

14. Cathode rays are also known as Canal rays.

Writethecorrectansweraboutthefigureandlabelsgivenbelow:

15. Name the shell denoted by X, Y, Z. Which shell has the highest energy?

16. Name N and state the charge on it.

17. The above diagram represents which model of atom?

23 11

14 6

13 6

12 6

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