Water Wonders Review Worksheet
Water Wonders Review
Modified Science Practice Sheet
Name:
Date:
1
The Water Molecule: Meet H₂O
O Oxygen (–) H (+) H (+)
Water behaves like a tiny magnet!
Word Bank: Oxygen Hydrogen Stick
1. One water molecule has 1 large atom.
2. It also has 2 small atoms.
3. Positive and negative sides help water together.
2
Water Superpowers: Match the Big Idea
Draw a line from the term to its meaning
Cohesion
Water sticks to water
•
Water Drops Bead Up
Water droplets hold hands to form round drops on glass.
Adhesion
Water sticks to other things
•
Climbing a Paper Towel
Water sticks to plant stems or paper and travels up.
Universal Solvent
Water dissolves stuff
•
Dissolving Salt & Sugar
Solid particles spread out evenly and disappear in water.
Ice Floats
Solid ice is lighter
•
Winter Lake Blanket
Ice floats on top so fish can swim safely underneath.
Remember: "Co" means together (water + water). "Ad" means to add something new (water + paper or glass)!
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3
Water in Real Life: Choose the Best Answer
Fill in the circle for each question
1
Water Strider Bug
A tiny bug walks across a pond without sinking. Why doesn't it fall through?
A. Surface tension makes water act like a stretchy skin.
B. The pond water is frozen solid into rock-hard ice.
2
Thirsty Trees
How does water move upward from tree roots all the way to high leaves?
A. Strong winds blow water droplets through the tree bark.
B. Water sticks and climbs up narrow tubes (capillary action).
C. Water boils into hot steam to bubble up the trunk.
3
Winter Ice
When liquid water freezes into solid ice, why does the ice float?
A. Ice spreads out and is lighter (less dense) than water.
B. Solid ice is much heavier and sinks straight to the mud.
4
Sweating to Cool Down
When you run and sweat, what happens when sweat evaporates off your skin?
A. It carries body heat away into the air to cool you down.
B. It traps hot air inside your muscles to make you warmer.
4
Show What You Know: Diagram & Mix
Activity A: Salt in Water Solution
You stir table salt into a glass of warm water until it dissolves.
🧂
Salt
💧
Water
=
🥛
Salt Water
What dissolved in the water?
The Salt (Solute)
The Glass Cup
Activity B: Cohesion in Action Quick Sketch
Draw 3 round water droplets sticking together on a leaf or window.
🍃 💧
Hint: Water drops stick together because of cohesion!
Awesome job! You reviewed how water molecules work and why they are so special.
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