Comments on: Catapults

By: Pam McKay

Pam McKay — Thu, 02 Feb 2012 17:21:21 +0000

This was the BEST project ever!!! Love it!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

By: Merry

Merry — Thu, 17 Nov 2011 20:26:30 +0000

Yes I do mean K’nex

By: Aurora

Aurora — Tue, 15 Nov 2011 19:02:07 +0000

Awesome! I love science too!! So glad you were thinking resourcefully! Send me a picture and I can post it to the website. Do you mean K'NEX?

By: Merry

Merry — Tue, 15 Nov 2011 18:42:00 +0000

Hello,I tried the advansed catapult, but I didn’ have tounge depresors, so I used Kenecks instead; And it worked!!!

I LOVE e-sceince,

P.S.I’m Merry’s daughter Anna.

By: Aurora

Aurora — Tue, 08 Nov 2011 19:44:54 +0000

Try more hot glue?

By: Sue Conner

Sue Conner — Tue, 08 Nov 2011 15:39:45 +0000

I can not get the clothes pin to stay on. Abbi.

By: Jennifer Atchison

Jennifer Atchison — Thu, 03 Nov 2011 14:57:16 +0000

Very cool, we will have to make that

By: Lorelei Grecian

Lorelei Grecian — Thu, 03 Nov 2011 12:27:34 +0000

This was awesome!!!! I made one big catapult and two small ones! So there was one on either side of the big one!

By: Athena H

Athena H — Wed, 29 Jun 2011 12:18:04 +0000

A ping pong ball has been flying across our living room all afternoon! We used 7 small Popsicles, 2 tongue depressors and several rubber bands for our fun catapult. We are certainly looking forward to trying another experiment tomorrow. Thanks Aurora

By: Aurora

Aurora — Fri, 27 May 2011 03:28:08 +0000

Great idea! I bet it looked great.

I found a box of 300 tongue depressors for only $4 on sale at Michael’s or JoAnn’s craft store – you can try there if you need to. The ones in smaller sets (less than 50 per pack) seem to be really expensive. And any rubber bands will work, as you found out.

By: simone goes

simone goes — Thu, 26 May 2011 22:56:46 +0000

my daughter made the frame out of plastic knives and instead of normal rubber bands she used hair ties. That is MUCH cheaper than 8 dollar toung depressers and 3 dollar rubber bands.

By: Danielle Elizalde

Danielle Elizalde — Wed, 13 Apr 2011 01:25:50 +0000

COOL!!!!!!!!!!

By: Aurora

Aurora — Sun, 10 Apr 2011 03:07:12 +0000

Anything slightly bendy and about that size will work.

By: angela chan

angela chan — Sat, 09 Apr 2011 18:33:32 +0000

Great Video. Is there anything you can substitute for the popsicle sticks?

By: Pat Pietrak

Pat Pietrak — Thu, 10 Mar 2011 16:22:45 +0000

AWSOME!!!

By: Kristine Besic

Kristine Besic — Thu, 27 Jan 2011 19:21:17 +0000

this is awsome

By: Kacey Sauve

Kacey Sauve — Fri, 10 Dec 2010 17:52:31 +0000

maybe on facebook
-Caleb

By: Aurora

Aurora — Fri, 10 Dec 2010 00:36:46 +0000

Sounds like fun – send a photo!

By: Kacey Sauve

Kacey Sauve — Thu, 09 Dec 2010 23:00:15 +0000

I bet if you added two round rods instead of seven popsicle sticks you could add wheels and make mobile.
-Caleb

By: Michelle Olding

Michelle Olding — Wed, 24 Nov 2010 00:13:35 +0000

it is cool

By: Aurora

Aurora — Mon, 18 Oct 2010 14:08:54 +0000

In the video I used hot glue, but if this doesn’t work, try epoxy (the 5-minute type).

By: Angela Doty

Angela Doty — Mon, 18 Oct 2010 03:39:34 +0000

What kind of glue did you use? We tried super glue and hot glue, and the bottle cap would fly off after a few shots.

By: Aurora

Aurora — Fri, 13 Aug 2010 15:16:14 +0000

You can use any number of rigid objects – in fact, there’s a student hat wrote to me saying he’d made a larger model using old bike tires (the inner tube part that holds air) for the rubber bands, spatulas for the spoon, and large pieces of wood for the frame.

By: Ajmer Dhanda

Ajmer Dhanda — Fri, 13 Aug 2010 06:16:24 +0000

That was cool! Do you have to use popiscle sticks for this experiment or can you use something else?

By: Lillian Villa

Lillian Villa — Thu, 18 Feb 2010 18:33:08 +0000

I made my catapult and it is AWSOME!!! now i am going to make a lego catapult.

By: Debra Thomson

Debra Thomson — Fri, 08 Jan 2010 15:05:36 +0000

My brother LOVES this. He is going to use it for his Legos/Playmoabile.
Holly Thomson:)

By: sevy keble

sevy keble — Sat, 14 Nov 2009 22:14:22 +0000

Well, it sounds like close to the end of the video when you launched the catapult it broke some glass.
sevy keble