The life and times of a home schooling mom of se7en + 1.

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Se7en Do Rocket Science…

November 19th, 2011 · 20 Comments

Sometimes we are just inspired… and my kids have been dying to make rockets. I on the other had have no desire to spread diet soda and menthos everywhere!!!

So they did a quick search and they came across rockets that needed bicycle pumps attached to bottles or hose pipes attached to things a holes drilled through bottle tops… Nothing like the kitchen science that I am always after. I thought we would blog our learning curve as we tried different rockets. So forgive us for re-inventing the wheel or the rocket… but you will see it was well worth it in the end!!!

We started with AIR:

Just a straw:


Give the one end of the straw wrapper a little twist to seal it and then blow… gone…


Then with tissue paper on a straw:



Then we went huge… but we needed a trumpeter to blow this… Just a twist of paper onto a Vuvuzela..


It didn’t fly…


So we moved on to FIRE: And the famous teabag rocket…


Empty your teabag, open the teabag up and drop a match into it. The teabag will light and the warm air will lift it, but the wait of the flame will bring the rocket back down… not the most exciting rocket… Don’t let anyone tell you this one is wild!!!


So we went back to AIR Rockets and those trusty Balloons:


Thread a piece of string through a straw, and blow up a balloon – but don’t tie it shut! Hold the balloon next to the straw and tape it on to the straw… Hold the string tight and let go of the balloon… Woosh… but we were looking for more!!!

So we started to work on CHEMICAL rockets:

You will need a small empty canister, some water and a ant acid tablet, which we didn’t have so we used some citro soda. And we gave it a little test run.


Then we made sure that the rocket looked like a rocket…


We filled our canister with water and popped the citro soda into it… Slammed it shut and then placed it on the counter…


We were good to give it a go… and like so many kitchen science experiments it was a lot more hype than woosh!!! It lifted but only marginally!!!

So we moved onto bigger things…

You will need a plastic, a cork that fits the opening snuggly, vinegar, water, bicarbonate of soda and tissue paper.


Begin by making your bottle looking like a rocket – and remember to keep the bottle opening free at the bottom of the rocket.


Fill the bottle about a third full with water, another third vinegar. Head out doors and practice planting your rocket against a plant with the cork firmly in place. Once you are satisfied with your launch plan then… Make a little parcel of bicarbonate soda – wrapped in tissue paper… drop it into your bottle of vinegar water… slam the cork in, plant it ready to launch and step back…




Before I could take the second photograph the cork had popped out and the rocket was gone… not far… but gone!!!

We were onto something, we just needed a grander scale… So a bigger bottle, and the same recipe: water, vinegar and bicarbonate of soda…


Checking the launch pad…

And last minute preparations…


Woosh… So fast, so high, so impressive!!!


Let’s see that again…




And repeat and repeat and repeat… Make sure you stock up on vinegar and baking soda before you do this experiment because once is just not enough!!!

Hope you all have a fun weekend!!!

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Tags: Science · Se7en at School

20 responses so far ↓

  • 1 Granny Ant // Nov 19, 2011 at 10:12 pm

    Please remind me never to drink coke and eat Mentos in quick succession. Imagine where one might land. How about the North Pole for Christmas. The vinegar and bicarb is is pretty impressive too. I hope N.A.S.A. have been alerted to the fact that they are being challenged down South.

  • 2 se7en // Nov 20, 2011 at 3:47 am

    Hay Granny Ant, I would definitely not recommend coke and Mentos at all!!! This project was one they have been working on for ages and I am so glad the finale was a grand one!!! It really turned out well!!! Hope you have a great weekend!!!

  • 3 jacki // Nov 20, 2011 at 4:50 am

    Awesome! Just awesome! To think there is much more fun to be had than just cleaning blocked drains. Where have I been?
    jacki´s last blog post ..summer birthdays

  • 4 Zoe // Nov 20, 2011 at 9:35 am

    What a great post – the drama of the finale really comes across. Love it! Have you seen the photos from the world record attempt in Belgium regarding mentos and coke? Here are some: I don’t think they’ll make you any more keen to do it!!
    Zoe´s last blog post ..Gifts from book illustrators – David Melling

  • 5 se7en // Nov 20, 2011 at 4:48 pm

    Hay Jacki… Good to hear from you!!! Oh I am sorry about the blocked drains… We had the father person cleaning out a blocked loo… who knows who put what project down there – I would hate to know!!! A friend of ours called the plumber he pulled out a BOX of crayons, countless pencil crayons, two markers, three matchbox cars… bit what eventually stopped the show was an entire barbie doll!!! Amazing but true – and she had no idea that any of it was actually down there… Lots of love to you guys, from all of us!!!

  • 6 se7en // Nov 20, 2011 at 4:53 pm

    Oh Zoe, So glad you liked our rockets!!! Love your link… and the craziness!!! My kids thought it was so funny they were all wearing raincoats. They would never have thought of that!!! Hope you have a fun weekend!!!

  • 7 irene // Nov 21, 2011 at 12:50 pm

    wahahahaha – that last one did really take off 🙂

  • 8 The Week That Was 4.20… » se7en // Nov 21, 2011 at 5:23 pm

    […] #1: Has run out of hedges for a couple of weeks… so the Bougainvillea was attacked. He took rocket science to heart and was determined to launch a moon lander… Hood #2: Has become our Saturday night […]

  • 9 se7en // Nov 21, 2011 at 5:28 pm

    No kidding Irene, Higher than the roof… again and again and again!!! Hope you have a brilliant week… the end of the year is in sight!!!

  • 10 maggy,red ted art // Nov 24, 2011 at 3:27 pm

    Oh my! I LOVE how you started off simple and then get more and more sophisticated!! Just a journey of exploration and fun!

    Thank you for linking to Kids Get Crafty!

    maggy,red ted art´s last blog post ..Giveaway: Up To The Moon

  • 11 se7en // Nov 24, 2011 at 5:11 pm

    Glad you liked it Maggy!!! We sure had fun making this post!!!

  • 12 creativejewishmom/sara // Nov 24, 2011 at 10:51 pm

    What a great rocket tale… boys are gonna love this one, if I decide to share it with them that is….hmmmm…thanks so much for sharing on Craft Schooling sunday!
    creativejewishmom/sara´s last blog post ..Chanukah Centerpiece: Yarn Wrapped Hurricanes

  • 13 se7en // Nov 24, 2011 at 11:01 pm

    Hay Sara, Glad you liked it!!! Show your boys… it was well worth the fun and the bottle of white vinegar we had to buy!!! Hope you have a great day!!!

  • 14 The Week That Was – 4.24 » se7en // Dec 30, 2011 at 10:50 am

    […] #1: Is still all about rocket science… Finishing up school assignments. Hood #2: Chess, chess, chess… The grandmaster strikes […]

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