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Solids, Liquids and Gases - 1 Class 5 Worksheet Science

Q1: Multiple Choice Questions (MCQs).


(i) Which state of matter has a definite shape and volume?
(a) Solid
(b) Liquid
(c) Gas
(d) Plasma

Ans: (a)
Solids have a definite shape and volume because their particles are closely packed together and cannot move freely.
Solids, Liquids and Gases - 1 Class 5 Worksheet Science

(ii) Which state of matter takes the shape of the container it is in?
(a) Solid
(b) Liquid
(c) Gas
(d) Plasma

Ans: (c)
Gas particles move the fastest because they have more energy and are not as tightly packed as the particles in a solid or liquid.

(iii) Which state of matter has particles that move the fastest?
(a) Solid
(b) Liquid
(c) Gas
(d) Plasma

Ans: (b)
Liquids take the shape of the container they are in because their particles are not as tightly packed as in solids, allowing them to move and flow.

(iv) The process of a solid changing into a liquid is called:
(a) Melting
(b) Freezing
(c) Evaporation
(d) Condensation

Ans: (a)
Melting is when a solid changes into a liquid due to an increase in temperature, causing the particles to gain energy and move more freely.
Solids, Liquids and Gases - 1 Class 5 Worksheet Science

(v) The process of a gas changing into a liquid is called:
(a) Melting
(b) Freezing
(c) Evaporation
(d) Condensation

Ans: (d)
Condensation is when a gas changes into a liquid due to a decrease in temperature, causing the particles to lose energy and become more tightly packed together.

Q2: Fill in the blanks.

(i) The three states of matter are _______, _______, and _______.
Ans: The three states of matter are solid, liquid, and gas.

(ii) Particles in a solid are packed closely together, making it _______.
Ans: Particles in a solid are packed closely together, making it incompressible.

(iii) Liquids do not have a fixed shape, instead, they take the shape of the _______.
Ans: Liquids do not have a fixed shape, instead, they take the shape of the container.

(iv) Gases have no fixed shape or volume and can be compressed or _______.
Ans: Gases have no fixed shape or volume and can be compressed or expanded.

(v) The change of a solid into a liquid is called _______.
Ans: The change of a solid into a liquid is called melting.

Q3: Match the column.

Solids, Liquids and Gases - 1 Class 5 Worksheet Science

Ans: (i) Solid - (c) Fixed shape
(ii) Liquid - (d) Incompressible
(iii) Gas - (a) Shapeless
(iv) Melting - (e) Change of liquid to gas
(v) Evaporation - (b) Compressed

Q4: True or False.


(i) Solids have a fixed shape.
Ans: True

(ii) Particles in a gas are loosely packed.
Ans: True

(iii) The process of a liquid turning into a solid is called evaporation.
Ans: False
The process of a liquid turning into a solid is called freezing or solidification.

(iv) The particles in a liquid are more tightly packed than in a solid.
Ans: False
The particles in a liquid are less tightly packed than in a solid.

(v) The particles in a gas have more energy than those in a solid or liquid.
Ans: True
Solids, Liquids and Gases - 1 Class 5 Worksheet Science

Q5: Short Answer Questions.


(i) What are the three main states of matter?
Ans: The three main states of matter are solid, liquid, and gas.

(ii) How do the particles in a solid, liquid, and gas differ from each other?
Ans: In a solid, particles are closely packed together and cannot move freely. In a liquid, particles are less tightly packed and can move and flow. In a gas, particles are not tightly packed at all and move quickly and freely.

(iii) What is the process called when a liquid changes into a gas?
Ans: The process of a liquid changing into a gas is called evaporation.
Solids, Liquids and Gases - 1 Class 5 Worksheet Science

(iv) What happens to the particles of a substance when it is heated?
Ans: When a substance is heated, its particles gain energy and move faster. This causes the substance to change state, such as from a solid to a liquid or a liquid to a gas.

(v) What is the process called when a liquid changes into a solid?
Ans: The process of a liquid changing into a solid is called freezing.

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FAQs on Solids, Liquids and Gases - 1 Class 5 Worksheet Science

1. What are the three states of matter?
Ans. The three states of matter are solids, liquids, and gases. Solids have a fixed shape and volume, liquids have a fixed volume but can change shape, and gases can change both shape and volume.
2. How do solids, liquids, and gases differ from each other?
Ans. Solids have a fixed shape and volume, while liquids have a fixed volume but can change shape. Gases, on the other hand, can change both shape and volume. Additionally, the particles in solids are tightly packed and have little movement, while particles in liquids and gases have more freedom of movement.
3. Can a substance change from one state of matter to another?
Ans. Yes, a substance can change from one state of matter to another through processes such as melting, freezing, evaporation, and condensation. For example, water can change from a solid (ice) to a liquid (water) to a gas (water vapor) depending on the temperature and pressure.
4. What happens to the particles in a substance when it changes from a solid to a liquid?
Ans. When a substance changes from a solid to a liquid, the particles gain enough energy to overcome the forces holding them in a fixed position. As a result, the particles start to move more freely but are still close to each other. This is why liquids have a fixed volume but can change shape.
5. How does temperature affect the state of matter?
Ans. Temperature plays a crucial role in determining the state of matter. Increasing the temperature generally increases the kinetic energy of the particles, causing them to move faster. This can lead to a change in state, such as melting or evaporating. Decreasing the temperature can cause the particles to slow down and result in a change to a more solid state, such as freezing.
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