An simple and a easy sand clock, make it at your home!!!
Step 1: Materials Needed....
I guess you can find them all: 2 similar bottles, something to make a hole in the cap, sand, a small plastic funnel, quick glue and tape.
Step 2: Making the Holes...
Make a clean smooth hole in both of the bottle's cap.
Step 3: Glue Them Together, Carefully!
Glue the caps together.
Step 4: Making It Smoother.....
Cut a piece of the funnel and insert in the hole. Must be presice
Step 5: Pour All Your Sand Into a Bottle Such That It Fills Half of It.
Carefully use the remaining funnel or a new one to pour the sand in the bottle
Step 6: Connect the Connected Caps to the Bottles. Also Tape Them to the Bottle for Extra Support.
attach the caps. Tape them with care for extra support.
Step 7: VOILA, You Are Done!!!!!!
Calculate your time and Enjoy your clock!!!