Marshmellow Catapult

 Aim: To make a catapult that will work.

What we want to happen: 

• We want to be able to make a catapult
• Calculate the speed it is flying at
• Have a competition who can make the best one
• Whos can go the farthest and fastest
• Who can catch the most marshmallows

Equipment:

It will create 1 catapult 

• Popsicle sticks-10ish
• Rubber bands- 5ish
• Plastic bottle cap-1
• Something to catapult-We used marshmallows
• Hot glue
• Plastic cups-4

Method:

https://www.youtube.com/watch?time_continue=19&v=BuNfdv0yFTg

Results:

Marshmallow (Amount)	Test 1	Test 2
1	2m 28cm	3m
2	2m 11cm	2m
3	1m 71cm	1m 22cm
4	1m 40cm	1m 23cm

Test 1: In this chart off test one you will be able to observe the blue line which outlines how many marshmallows are used, whereas the red line signifies the distance of how far the marshmallows have gone. Considering you can see from this chart the distance of the marshmallow drops as the number of marshmallow increases.

Test 2: In this 2nd chart you will see the blue line which basically outlines how many marshmallows have been used, whereas the red line is the distance of how far the marshmallows went, You can see from this chart the distance of the marshmallows will decrease as the number of marshmallow increases. However, unlike test 1 the distance has decreased faster and stays at the same distance for a while but right at the end, it goes up a bit.


Pictures of the experiment: