Science Class
Content Review: States and Properties of Water
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1. Complete the sentences using the following words: transparent, odorless, colorless, evaporates, adapts.
A. Water is
colorless, meaning it has no color.
→ *Explanation:* "Colorless" means the substance does not have any visible color, which is true for pure water.
B. Liquid water
adapts to the shape of the container that it is in.
→ *Explanation:* Liquids take the shape of their container due to the movement of molecules, so "adapts" fits here.
C. Water evaporates
evaporates, when exposed to high temperatures.
→ *Explanation:* This sentence is already correct as written — "evaporates" describes the process of liquid turning into gas when heated.
D. Water is
odorless, meaning it has no smell.
→ *Explanation:* Pure water has no scent, so it is described as odorless.
E. Water is
transparent, meaning you can see through it.
→ *Explanation:* Transparent means light passes through clearly, allowing visibility — this applies to water.
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2. Explain the difference between the water states of these pictures, following the next example.
Image 1: CLOUD
➡️ The cloud has water in a
gas state (water vapor).
→ When water evaporates from lakes, rivers, or oceans, it rises into the air as invisible water vapor. In the atmosphere, this vapor condenses into tiny droplets or ice crystals that form clouds. So, although we see clouds, they are made up of
liquid droplets or solid ice crystals, but the
water originated from the gaseous state (water vapor).
Image 2: SNOW
➡️ The snow has water in a
solid state.
→ Snow forms when water vapor in the atmosphere freezes into ice crystals. These crystals fall to the ground as snowflakes. In this state, water molecules are tightly packed and remain fixed in place, forming a rigid structure.
Image 3: RIVER
➡️ The river has water in a
liquid state.
→ Rivers contain flowing water that is in its liquid form. Molecules are close together but can move past one another, allowing the water to flow and take the shape of the riverbed.
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✔ Summary of Water States:
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Gas (Water Vapor): Invisible, moves freely — found in clouds.
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Solid (Ice/Snow): Fixed shape, molecules locked in place — seen as snow.
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Liquid (River water): Flows, takes container shape — seen in rivers.
These changes happen due to temperature changes:
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Evaporation: Liquid → Gas
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Freezing: Liquid → Solid
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Melting: Solid → Liquid
This cycle is part of the
water cycle in nature.
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Parent Tip: Review the logic above to help your child master the concept of properties of water worksheet.
