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Printable Worksheet -2: Solids, Liquids & Gases | Science Olympiad Class 4 PDF Download

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 Page 1


CHANGES IN STATES OF MATTER
Date Name
Part I: Draw a line to match the change in state with
its description. 
Part II: Label the following changes in state. 
ice cube left out
drying laundry
juice placed in a freezer 
formation of dew drops
melting gas to liquid
freezing liquid to gas
evaporation liquid to solid
condensation solid to liquid
Page 2


CHANGES IN STATES OF MATTER
Date Name
Part I: Draw a line to match the change in state with
its description. 
Part II: Label the following changes in state. 
ice cube left out
drying laundry
juice placed in a freezer 
formation of dew drops
melting gas to liquid
freezing liquid to gas
evaporation liquid to solid
condensation solid to liquid
CHANGES IN STATES OF MATTER
Date Name
Part II: Label the following changes in state. 
ice cube left out
drying laundry formation of dew drops
melting gas to liquid
freezing liquid to gas
evaporation liquid to solid
condensation
melting
Answer Key
evaporation
freezing
condensation
solid to liquid
juice placed in a freezer 
Part I: Draw a line to match the change in state with
its description. 
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FAQs on Printable Worksheet -2: Solids, Liquids & Gases - Science Olympiad Class 4

1. What are the main differences between solids, liquids, and gases?
Ans. Solids have a definite shape and volume, with particles that are closely packed together in a fixed arrangement. Liquids have a definite volume but take the shape of their container, with particles that are close together but can move past one another. Gases have neither a definite shape nor volume, with particles that are far apart and move freely.
2. How does temperature affect the state of matter?
Ans. Temperature plays a crucial role in determining the state of matter. When a substance is heated, it can gain energy, causing its particles to move faster and potentially change from solid to liquid (melting) or from liquid to gas (evaporation). Conversely, cooling a substance can cause it to lose energy, leading to a change from gas to liquid (condensation) or from liquid to solid (freezing).
3. Can you provide examples of each state of matter?
Ans. Yes! Examples of solids include ice, wood, and metal. Common liquids are water, oil, and alcohol. Examples of gases include oxygen, carbon dioxide, and nitrogen. Each state has distinct properties that make them unique.
4. What is the process of changing states of matter called?
Ans. The process of changing states of matter is called a phase change. Common phase changes include melting (solid to liquid), freezing (liquid to solid), evaporation (liquid to gas), condensation (gas to liquid), and sublimation (solid to gas).
5. How do pressure and volume relate to gases?
Ans. According to Boyle's Law, pressure and volume of a gas are inversely related when temperature is held constant. This means that if the volume of a gas decreases, its pressure increases, and vice versa. This relationship helps explain how gases behave under different conditions.
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