Thames & Kosmos
Water Power: Rocket-Propelled Cars, Boats, and More!
Water Power: Rocket-Propelled Cars, Boats, and More!
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Ages 8 & up
Harness the power of air and water to make things move! Build water-rocket cars, jet-propelled boats, a water gun, and even a lawn sprinkler.
Learn about the laws of physics and their applications in real-world engineering. When you pump air into your rocket, you increase the air pressure inside. Then when you release the clamp, watch out — the air and water mixture inside will shoot out, causing your rocket to zoom off in the opposite direction!
One at a time, you can build 6 different air and water powered machines!
WARNING: Not suitable for children under 8 years. For use under adult supervision. Keep small children and animals away from experiments.
Store Pickup
Store pickup is always free.
We fulfill orders as quickly as we can. If you need something by a specific day or time, let us know at checkout and we will do our best!
Happy Up Edwardsville:
- Orders are usually available for same day pickup if ordered by 2pm, Monday - Saturday.
- If ordered after 2pm on Saturday, your order will be ready on Monday (or the next business day in case of holidays).
Happy Up Clayton:
- Orders are usually available for next day pickup If ordered by 2pm, Tuesday - Saturday.
- Orders placed before noon on Sunday will be available for pickup on Tuesday.
- Some items may take additional time. We will contact you to let you know.
For Curbside Pickup:
Once we've let you know that your order is ready, give us a call when you arrive at the store. We'll bring your purchases out for you!
Shipping
We are more than happy to ship things for you!
A $24.00 minimum purchase is required for shipping.
Shipping rates are based on your cart total after any discounts or coupons.
Purchase Amounts:
- $24 - $50 = $9.75 shipping
- $50.01 - $75.00 = $12.25 shipping
- $75.01 - $100.00 = $14.75 shipping
- $100.01 - $150.00 = $19.00 shipping
- $150.01 and up = $25.00 shipping
Some items are not eligible to ship. These items are labeled on their product page and in your cart as: Store Pickup Only
If you do not see shipping as an option at checkout, please check if any of your items are Store Pickup Only.
Shipping orders are processed Monday through Friday.
If you have any questions, send us an email: help@happyupinc.com
You are also welcome to give our Edwardsville, IL location a call during store hours: (618) 656-9596
Returns Policy
We aren't happy until you are!
With receipt or email confirmation:
- exchange, store credit, or refund to original form of payment
With gift receipt:
- exchange or store credit
Without receipt, email confirmation, or gift receipt:
- exchange or store credit
Shipping charges are not refundable.
To arrange for a return of an item we shipped, please email help@happyupinc.com
