Samacheer Kalvi Class 3 Science Term 1 Chapter 2 States of Matter Question Answer
Samacheer Kalvi Class 3 Science Term 1 Chapter 2 States of Matter Question Answer Solution in this page. Students of Tamilnadu Board will get here States of Matter Chapter’s Exercise Question Answer Solution with Additional Questions and Answer.
I.) Indicate whether the following statements are true or false.
1.) Solids have a definite volume. (True)
2.) Liquids can not flow. (False)
3.) We can melt any substance by cooling it. (False)
4.) Liquids can take the shape of the container. (True)
5.) Gases have a definite shape or volume. (False)
6.) Matter changes its state when heat is added or removed. (True)
7.) A fuel is a substance which gives heat energy on burning. (True)
II.) Fill in the blanks. (Evaporation, Mass, Water, Solid, Stone, Freezing)
1.) The measure of matter in an object is called …mass….
2.) Change of liquid into vapor on heating is called ….evaporation……
3.) An example for liquid is..Water….
4.) The change of liquid into solid on cooling is known as….freezing….
5.) An example for solid is ..stone..
IV.) Answer in a word or two.
1.) Which of these is a solid: wood or juice?
Ans- Juice
2.) Which of these is hard: a sponge or a glass or a cloth?
Ans- A glass
3.) What are three states of matter?
Ans- Solid, liquid, gas
4.) Name three substances which can change to liquid when they are heated?
Ans- Ice cubes, cheese, jaggery
5.) In which state of matter the particles are very close to each other?
Ans- Solid
6.) What state of matter is rain?
Ans- Liquid
7.) Which among the state of matter has definite volume but no definite shape?
Ans- Liquid
8.) What would cause a liquid to turn into a solid?
a) Pouring it into a container b) Heating it until it boils
c) Cooling it until it freezes d) keeping its temperature the same
Ans- Cooling it until it freezes.
9.) What are some properties of pencil?
Ans- Wooden solid, definite shape and volume.
V.) Find me. (Liquid, Water, Wood)
1.) I am a five letter word. I am an essential need for your life. I remain in all the three states of matter. Who am I ?
Ans- Water
2.) I am a solid. I am obtained from the trees. I am useful for heating. Who am I?
Ans- Wood
3.) I am one among the three states. I have loosely arranged particles.
I become vapor on heating. Who am I ?
Ans- Liquid
VI.) Describe the word in one sentence.
1.) Solid: Solids are the things that have a definite shape and volume and occupy a fixed shape.
2.) Liquid: Liquids are the things that do not have a definite shape and definite volume but occupies space.
3.) Melting: Change of solid into liquid on heating is called melting.
4.) Evaporation: Change of liquid into vapor on heating is called evaporation.
5.) Freezing: Change of liquid into solid on cooling is known as freezing.
VII.) Which change of state is taking place in each description below?
Use these words.
Freezing Evaporation Condensation Melting
a) An ice cube turning to water _________melting___________
b) Water turning to ice in a freezer __________freezing__________
c) Change of liquid into vapor on heating ______evaporation______________
d) A bathroom mirror misting up condensation
Additional Questions & Answers-
1) Make sentences.
1) Water- We can not survive without water.
2) Wood – We get wood from trees.
3) Coal – We use coal as a fuel.
4) Gas- Oxygen gas helps us to breathe.
5) Cloud – The sky is covered with white clouds.
2) Match the following.
1) Ice Pencil
2) Cloud Coconut
3) Oil Water
4) Coal Rain
5) Wood Fuel
Answer-
1) Ice – water
2) Cloud – rain
3) Oil – coconut
4) Coal – fuel
5) Wood – pencil
3) Find out liquid or solid or gas from the following words and write it.
Pencil Water Oxygen Milk Chocolate Book Air Juice Stone Cloud Fire Bricks
1) Liquid- Water, milk, juice
2) Solid- pencil, chocolate, book, stone, bricks
3) Gas- Oxygen, air, cloud, fire
4) What will happen?
1) If a glass of water keeps in the freezer….Ice
2) If heat added to a ice cube….water
3) If heat added to water…. steam