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Weather in a Bottle

25 minutes

Science Experiment

Create mini weather systems in bottles to observe clouds and water drops (teacher-led demonstration).

Learning Objectives

Observe how clouds form in a controlled environment
Understand the water cycle in simple terms
Practice scientific observation and description
Develop curiosity about weather science

Activity Instructions

1
Show students the clear bottle and explain we'll make weather inside
2
Add warm water to the bottle (about 1/3 full)
3
Add a few drops of food coloring if desired for visibility
4
Place ice cubes on top of the bottle lid
5
Observe as water vapor rises and condenses on the cold lid
6
Discuss what students see happening in the bottle
7
Explain that this is like how clouds form in the sky
8
Let students take turns observing the bottle up close
9
Clean up materials and discuss what we learned about weather

Assessment Criteria

Students can describe what they observe in the bottle
Students make connections between bottle weather and real weather
Students ask questions about the weather experiment
Students show curiosity about weather science

Materials Needed

Clear plastic bottles with lids
Warm water
Ice cubes
Food coloring (optional)
Whipped cream or shaving cream
Small funnels
Paper towels for cleanup

Preparation Steps

Test the experiment beforehand to ensure it works properly
Prepare clear bottles with secure lids
Have warm water ready at appropriate temperature
Set up demonstration area with good visibility

Teaching Tips

Keep the experiment simple and focused on observation
Use clear language to explain what's happening
Allow plenty of time for students to observe and ask questions
Connect the experiment to students' weather experiences

Extension Activities

Try different temperatures to see how they affect cloud formation
Create multiple bottles to compare different conditions
Draw pictures of what students observe in the bottles
Connect to real weather observations outside

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