Objective: To simulate the twinkling of stars in sky.
Materials needed:
Procedure:
1. Crumple your square foil and place it on a table or on a floor.
2. Fill your clear bowl with tap water and place it on top of the crumpled foil.
3. Darken the room by turning off the lights. Hold the torch or flashlight above the bowl. Distance from the bowl is about 12 inches.
4. Observe the foil through the undisturbed water.
5. Now using your pencil, tap the surface of the water gently. Observe the foil through the moving water.
What happened?
The light rays reflecting from the foil when there was a movement in water appears to blur or twinkle.
Why?
The movement of the water causes the depth of the water to vary. The light rays twinkle because they bend or refract in different direction when it passed through the different depths of water.
This is similar to the light rays of the stars. They appear to be twinkling when you are observing from earth because they refract differently as the light rays move through the different thickness of air in the atmosphere. Scientifically, this twinkling phenomenon is called ‘scintillation’.
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Source: Janice VanCleave Astronomy
Welcome to the Learn & Play Link Party!
In relation to our activity this week, I am featuring space and astronomy themed activities! 
Relative Size of the Sun Activity from Research Parent
The Earth, The Sun & Stars from Every Star is Different
Space Explorer Toolbox from Montessori By Mom
Sensory Play for Earth Day from Mama’s Happy Hive
Earth Day from Child Led Life
Now it’s time for this week’s link party! This is a BRAND new link up for all blog posts that include learn and play activities and hands-on education for kids. We are excited to read your blog posts and to see what you have to share! Please link up below and grab our button to display on your blog.
If you are a blogger, share your family friendly posts here. We are looking for things which include:
- Montessori Education
- Homeschool
- Sensory Play
- Tot and Preschool Trays
- Fine and Gross Motor Activities
- Kids in the Kitchen
- Healthy Recipes for Kids
- Arts and Crafts
- Natural Living
- Free Educational Printables
- Family-Oriented Activities
- Healthy Living
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What an awesome fun solar post! Thank you for the feature of our Space Sensory post! :)
ReplyDeleteThis looks like so much fun! I love it!
ReplyDeleteWhat a fun experiment! My boys would love it!
ReplyDeleteThe boys can't stop using the torch.
ReplyDelete