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Cosmic Rocket Kit

by 4M

List Price: $12.22
Price: $10.86 & FREE Shipping on orders over $35. Details
You Save: $1.36 (11%)
Only 6 left in stock.
Sold by imagine products and Fulfilled by Amazon. Gift-wrap available.
  • Kit includes rocket components, graphics stickers, launch pad and instructions.
  • Great gift idea for the whole family.
  • Fuel it with vinegar and baking soda and watch it blast off.
  • Assemble your own 6" rocket!
  • For Ages 7 and up.
19 new from $7.95

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Frequently Bought Together

Cosmic Rocket Kit + POOF-Slinky 0SA200 Scientific Explorer Meteor Rocket Science Kit
Price for both: $22.28

These items are shipped from and sold by different sellers.

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WARNING:
CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

Product Details

  • Product Dimensions: 7 x 8.5 x 2.5 inches ; 3.2 ounces
  • Shipping Weight: 3.2 ounces (View shipping rates and policies)
  • ASIN: B00064XG5G
  • Item model number: 3433
  • Manufacturer recommended age: 14 years and up
  • Amazon Best Sellers Rank: #86,372 in Toys & Games (See Top 100 in Toys & Games)
  • Average Customer Review: 2.4 out of 5 stars  See all reviews (24 customer reviews)
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Product Description

Powered by vinegar and baking soda, this cosmic rocket flies up to 50 feet! This science kit is designed for the whole family and comes with a booklet of fun rocket science with detailed launching instructions.


Please note: Vinegar and baking soda not included. Rocket colors may vary.



Contents of Cosmic Rocket Science Kit:


  • 1 Transparent Rocket Body

  • 3 Rocket Fins

  • 1 Connecting Ring

  • 1 Launching Station Pad

  • 1 Measuring Spoon

  • 1 Fun Rocket Science Booklet with Detailed Launching Instructions

Customer Reviews

Nothing worked out with it.
Amazon Customer
In order to work, the rocket must seal very tightly to the base while the air pressure from the reaction of the baking soda and vinegar builds up.
Science Teacher Mommy
First one broke out of the box, second one after a couple launches.
Matthew J. Weaver

Most Helpful Customer Reviews

8 of 9 people found the following review helpful By J Sebastian on December 27, 2009
This thing hasn't worked once. It leaks pressure from the "O-ring". Bear in mind this was fresh out of the box too. For the adults out there, a leak in an O-ring caused the explosion of the Space Shuttle Challenger.

In this toy, a leaky seal won't cause an explosion, but instead it will prevent one - and your launch as well: the pressure can't build up enough in order to achieve a launch.

I don't know whether this is a manufacturing defect or not, but my guess is that these typically cheap (Made in China) plastic toys are fabricated to a very low standard of quality, and these standards do not easily lend themselves to achieving the kind of precision required in order to create an airtight seal capable of sustaining high pressures. I'd guess that even a perfect specimen would be pretty low quality. Another possible culprit seems to be the inadequate composition of the O-ring material; it is a soft gray rubber. When tightened the ring compresses to much to the point that it deforms and is literally squeezed out of its groove.

I'd skip this toy with its poor quality and/or design, and the potential disappointment of having it not work at all, even once, and instead go for one of the old-fashioned water rockets. They operate on water and compressed air and requires no mixing. I had many a water rocket as a kid and they provided hours of summertime entertainment. And you can even have fun building your own water rocket using an empty two liter bottle and parts available at any home improvement store. There are lots of sites with instructions and various designs.

A water rocket itself is just a two-liter bottle with fins on the bottom to stabilize it in flight.
Read more ›
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3 of 3 people found the following review helpful By S.W. on September 2, 2012
We bought this for our three year old son at a visit to Udvar Hazy near Dulles, and have used it several times. It took about three attempts before we figured out the right way to mix the baking soda (it goes in the base) and the vinegar (it goes in the rocket). Fill each part with the appropriate amount, THEN attach the base to the rocket holding both parts horizontally. Get a good but not too tight seal, shake and set down. Usually we get heights of 20-30 feet but we've had some go higher. We don't always get the seal quite right but it really isn't too hard. For a young, curious child, this is a great toy. I'm now looking to see what else the company makes that might be a good birthday present for him.
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2 of 2 people found the following review helpful By HomeShopper on October 22, 2012
Verified Purchase
I'm on my second one of these now. It's a lot of fun with a group of a few 5-8 year olds - I have them take turns (in groups of two) measuring and putting in the two fuel components, then I take the two sections to the 'launch pad' and have them count down from 10. At about 5 I put the two sections together, give it a quick shake and put it down and step away. After blast off we send out the recovery team - one or two of the kids, to retrive the parts and bring it back for me to wipe out the base then give it to the next fueling team for a re-load.

Even though I did carefully rinse it off before putting it away, eventually the o-ring broke down and it could not hold the pressure anymore. But it certainly lasted long enough to make it a very worthwhile toy.
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1 of 1 people found the following review helpful By Amazon Customer on May 30, 2012
Verified Purchase
It went about 4 inches in the air and that was about it. Threw it away after the second attempt at using it. We even tried to seal it with some silicone. Nothing worked out with it.
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1 of 1 people found the following review helpful By RHPHX on February 19, 2012
I tried new vinegar, old vinegar, two types of baking soda. Just not enough pressure to overcome the friction. And it leaked at the base releasing much of the needed pressure. I regret getting this toy. My kids were disappointed.
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Verified Purchase
This seal broke on the first one - never would launch because of leaks.
The base cracked on the second one - never launched because of leaks.
We DID NOT throw these around. We were careful.
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Verified Purchase
Just like another reviewer, mine also leaked at the O-ring. My plan was to silicone it around the ring and seal it. But when I was tightening the fins back on it broke in my hand. My fault for tightening it too much, but it is clear that there is a flaw in this design.
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Verified Purchase
I purchase one of these for every member of my STEM in Space Cub (Grades 4-8). We built them in less than 20 minutes and took them outside to launch. We had spent time the previous week learning about the chemistry of our 'jet fuel' - vinegar and baking soda combining to produce carbon dioxide gas to power out rockets. Every rocket went together easily and flew well repeatedly. They flew high enough to be exciting, but not so high that we lost or damaged any. All students were able to take home their rockets to use again and again with their friends and families. Great product.
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