Watchly Safety Review

Science Max | FULL EPISODE | Spool Racer | Season 2

22:03 · 241K views · April 7, 2022

Safe for Most KidsReviewed June 2026

This episode is safe for most kids and offers a highly engaging, hands-on lesson about potential and kinetic energy through giant spool racers and chain reactions. The positive qualities include clear scientific explanations, creative demonstrations, and a strong emphasis on safety (e.g., asking adults for help with mousetraps). The only minor concern is a brief, humorous bit where a bagel is dropped on the floor (with a 'five-second rule' joke), but it's not harmful or gross. Overall, it's a fun, educational STEM episode that encourages kids to experiment and think big.

What Parents Need to Know

This video is excellent for teaching kids about energy storage and transfer (potential vs. kinetic energy) through real-world, large-scale experiments. It covers building a spool racer, domino chain reactions, mousetrap and popsicle stick chain reactions, and even a battery test. The host, Phil, is enthusiastic and explains concepts clearly, while also modeling safety (e.g., wearing a helmet, warning not to set mousetraps without an adult). Kids will learn how to make their own spool racer at home and understand the science behind it. The only potential issue is that some experiments (like the mousetrap chain reaction) require adult supervision, which the video explicitly states.

Talk to Your Kids About

1What is potential energy, and how does it turn into kinetic energy in the spool racer?
2Why do you think the host says 'do not try this at home' for the giant spool racer? What makes it dangerous?
3How does the domino chain reaction show the difference between potential and kinetic energy?
4Can you think of other examples in real life where energy is stored and then released (like a rubber band or a spring)?

Science Max | FULL EPISODE | Spool Racer | Season 2

Protected Viewing

What's This Video About?

Storing energy is how a home-made spool racer works. But can Phil build one out of a giant cable spool!? Plus: a run of giant dominoes, a maxed out craft stick chain reaction, mouse-traps and ping pong balls. This episode is about to explode! 🚀NEW VIDEOS EVERY THURSDAY! 🚀 Subscribe to Science Max for more videos! https://bit.ly/3JtDpG8 Have you ever done a science experiment and wondered “What would this be like if it were HUGE?” Welcome to Science Max, the exciting new series that turbocharges all the science experiments you’ve done at home.

Frequently Asked Questions

What age is this video appropriate for?

This video is best for children aged 6 and up. The scientific concepts (potential and kinetic energy) are explained simply, and the experiments are engaging, but younger children might need help understanding the energy transfer and may need supervision for the mousetrap activity.

Is there any violence or scary content in this episode?

No, there is no violence or scary content. The mousetraps are shown being set off in a controlled chain reaction, and the host explicitly says no mice are harmed. The only 'danger' is a humorous bit where a bagel is dropped, but it's played for laughs.

Can my child build the spool racer at home?

Yes, the video provides clear step-by-step instructions for a simple spool racer using common household items like a spool, elastic, pencil, and popsicle stick. However, the giant version uses heavy industrial spools and bungee cords, which the host warns not to try at home. The small version is safe for kids with adult help.

Does this video teach any real science?

Yes, it teaches the difference between potential energy (stored energy) and kinetic energy (moving energy) through multiple hands-on examples. It also explains chain reactions and how energy transfers from one object to another, making it a great STEM learning tool.

Are there any ads or sponsored segments in this video?

No, the video does not contain any hidden advertising or sponsored content. It is purely an educational science show from the 'Science Max' series.

Is the mousetrap chain reaction safe for kids to try?

The video explicitly warns that mousetraps can hurt fingers and asks kids to have an adult help them. It also shows a large-scale version with 90 mousetraps, which is not safe to replicate at home. Parents should supervise any mousetrap activity and ensure kids understand the danger.