My homemade ballista science project

by Joel
(Sydney, Australia)

My homemade ballista

My homemade ballista

My homemade ballista
Getting the ballista ready to shoot

Ballistas were used in ancient times as seige weapons.

I made this one with wood, a small sapling for the bow and an arrow made of light dried wood.

I load the ballista by pulling back the string and placing it into a groove or notch which I made in the wood. Then I put in the arrow which has two nails to secure it on to the rope. Then I lever the rope very quickly so that it comes out of both side grooves at the same time and lets the arrow shoot straight out.

It probably works better if you put some bricks underneath it to make a better shooting angle.

Here's a short video of my homemade ballista shooting an arrow.



Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Homeschool Ideas - Science.

Recent Articles

  1. Homeschool Organziational Tips from the laundry to the kitchen table

    Feb 19, 17 04:12 AM

    Homeschool Organizational Tips - How do you organize your home school life? Planning your school days, organizing meal, keeping a clean house - Great advice from veteran home school families

    Read More

  2. Free Printable Writing Paper / Lined writing paper, Dotted Third Handwriting

    Feb 13, 17 10:19 PM

    Looking for free printable writing paper for you and your children to use? The lined paper comes in four different formats.

    Read More

  3. Handwriting Practice Sheets - free handwriting worksheets - 3 styles

    Feb 10, 17 08:20 PM

    Free handwriting practice sheets for Manuscript, D'Nealian and Cursive

    Read More