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Description
The World of Light & SoundThese are practical, informative and well written books. In fact, using these books will actually save mom a bunch of time since everything needed to accomplish a comprehensive series of lessons is includedexcept the scissors and glue! Each title in the Great Science Adventure Series contains 24 lessons covering every imaginable point of interest for an elementary student. By fully utilizing the research section, more advanced students are
These are practical, informative and well-written books. In fact, using these books will actually save mom a bunch of time since everything needed to accomplish a comprehensive series of lessons is included—except the scissors and glue! Each title in the Great Science Adventure Series contains 24 lessons covering every imaginable point of interest for an elementary student. By fully utilizing the research section, more advanced students are appropriately challenged. The nicest feature of the curriculum is the informative little "library books" that the children put together to go along with each lesson. By the time the 24 lessons are completed, the children have a 24-book library on the topic. Very clever! Plenty of help to assess progress and plan lessons. Web pages throughout for further investigations.The World of Light & Sound includes the study of sunlight, reflection, refraction, light travel, rainbows, colors, shadows, lenses, sounds, hearing, lasers, heat, sound measurements and more. 24 lessons, paperback, 8 1/2"x11". For a sample lesson, go to http://www.cspress.com/GSA-sample_lesson/lesson_light_and_sound.htm.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Amazing sealant and easy to use even in cold weather.
This product is amazing. It poured right into my tire even though it was -8 celcius. It sealed the crack in my aluminum rim and the the leaky tire bead after I hit a rock. Sealed everything and got me back to trailer and it is still holding air.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 18, 2018
★★★★★ 5
Flat tire… try this.
Size: 1 Gallon + Tool, Set name: Small Tire/Bicycle Formula
For husband, that’s what he puts in our tires great price and works well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
Go Ridding and Go Flatless with QuickStrike tire sealent
Size: 1 Gallon + Tool, Set name: Off-Road Formula
I’ve tried several tire sealants over the years on my ebikes and scooters, but FlatOut QuickStrike is by far the best I’ve used. From the moment I added it to my bike tires, I noticed a difference—it’s incredibly easy to install, and you don’t have to convert to tubeless to benefit from its protection. The formula is thin and spreads quickly, sealing punctures almost instantly so you don’t lose much air.
What I feel that really stands out is how effective it is. I ride my ebikes through rough terrain with lots of thorns and debris, and since using FlatOut QuickStrike, I haven’t had a single flat ( unlike before ). Even when I’ve picked up multiple punctures, the sealant has handled them all without a problem. I feel that the peace of mind it gives me is priceless, especially on long rides or commutes where a flat could ruin your day ( and It has in the past ).
Another big plus is that it’s a one-time application—it won’t dry out or turn into a mess inside your tire ( like that Green Stuff ). It’s also safe for both tubes and tubeless setups, and works well in my 20 inch and 14 inch tires. I’ve used it on my ebikes and scooters and the results have been consistently impressive.
Make me feel confident of the durability of my tires on my ride. I bought the gallon bottle because I have a few ebikes and scooters. this stuff works great!
If you want to spend less time fixing flats and more time enjoying your ride, this is the sealant to get. Highly recommend!
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Reviewed in the United States on June 14, 2025
★★★★★ 5
Fat tire savior
Size: 1 Gallon + Tool, Set name: Off-Road Formula
The best fat tire and dirtbike sealant we have found and love the gallon size. Pump clogs but clears with a strong push and love that it is water cleanup.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Worked perfectly for me. Sorry I waited so long.
Size: 1 Gallon + Tool, Set name: Off-Road Formula
I was clearing a field full of mesquite trees, and my tractor tires were getting destroyed. Mesquite has nasty 3-inch thorns, and I was plugging tires constantly. Eventually, all four tires were flat at the start of each day. These tires had been plugged more than 10 times each.
I bought FlatOut Quick Strike and followed the instructions exactly. The pump dispenses about 1 oz per pump, so I put 30 pumps in each tire, and the bottle was mostly empty by the time I finished. Typical with any pump dispenser it was also difficult to get the last bit out of the bottle using the pump.
It’s been a week now. One tire has lost about 1 PSI, but the other three are still holding exactly where I set them.
Considering how badly these tires were damaged, I’m impressed so far. This is the first time I’ve gone more than a day without dealing with flats in that field.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
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