How to Make an Hourglass

How to make an diy hourglass clock out of plastic bottle

Diy hourglass timer clock was a fun events.Hourglass making activity for our preschool students

Hello science fanciers. In this activity, we are going to make an hourglass clock together. Hourglass is a device to measure short time intervals. 

Necessary Materials for the Activity:

• Two pieces of 250 ml. plastic bottle
• Salt (or sifted soil)
• Nails
• Packaging Tape
• Glue
• Three pieces of wooden sticks (same size with two plastic bottles)
• Gouache or watercolor paint
• Cardboard
• Compasses
• Scissors
• A timekeeper

Instructions:

1. Make a hole on one of the bottle tops with the help of a nail.
2. Put some salt into one of the bottles, close up the bottle with the holey top.
3. Tape the plastic bottles firmly as the tops of them face each other and check the flow of the sand.
4. Cut two circles in twelve diameters out of cardboard by using compasses and scissors and glue these circles to the bottom of plastic bottles.
5. Glue three pieces of wooden sticks vertically to the cardboard by leaving equal space among one another.
6. You can paint the hourglass with gouache or watercolors and ornament as you wish.