The human eye isn't sharp enough to perceive natural phenomena and the intricacies of physics. Things in nature like cell mitosis, a hummingbird's flight, or a blooming flower often move too fast or too slow to be made sense of in real time. The invention of video technology has helped humanity uncover answers to some of science’s biggest questions by allowing us to speed up and slow down videos to better understand what's happening in them.

To help students learn more about science concepts that are better understood in slow or fast motion, educators can slow down or speed up videos using Kapwing’s free Video Speed Editor. Videos help visual learners observe what is happening and understand the real-life application of science concepts they learn in class.  Here are some examples of science concepts that are better visualized with fast or slow motion video:

  • A chemical reaction
  • A splashing water droplet
  • Cell division (paramecium)
  • Evaporation or rising

Kapwing's Video Speed Changer is a simple and fast tool that allows people change the speed of any video and save the altered video to share. The video can be a clip you or your students captured on their smartphone or a part of a YouTube video.

In this article, I'll describe how to create slow motion of sped up clips to aid with There are four easy steps you can follow when helping your students use Kapwing to create a slow motion or sped up clip:

  1. Select a Video
  2. Add your clip to the Speed Editor
  3. Choose your speed
  4. Publish and Share!

1) Select a Video

With Kapwing, you can use a video shot in class or even upload a YouTube video with just the URL. For my example, I wanted to learn more about why cats always land on their feet. The science behind this can be pretty hard to understand when you watch a video of a cat being dropped in real time, but when you slow it down you can start to visualize and understand how and why it happens.

Here is a GIF of the video I selected. I used a video from YouTube that someone else created to demonstrate a cat being dropped upside down and landing on its feet.

It’s pretty hard to see what’s happening with the video at this speed, and that’s why the Kapwing Speed Editor is so helpful!

2) Add your clip to the Speed Editor

Once you have a video, take it to the Kapwing Video Speed Editor where you can upload the clip if it is on your computer or paste the URL if it’s an online video.

3) Choose your speed

After uploading your video, you’ll be able to choose a new speed for it. You can select from the given speeds in the top left corner and watch on the screen to see how your video looks at each different speed. I chose to slow my video down to 0.25x speed.

4) Publish and Share!

Clicking the Create button in the bottom left corner will leave you with a brand new video at the speed you selected! From there you can download the video to share with others or open it in Studio to add text, images, or anything else you want!

Here is a GIF of my final video of a cat falling in slow motion. With this slow motion video it is much easier to see exactly how a cat rotates its body as it falls. This can help with asking more questions and doing further analysis on why and how this happens. Happy editing! And be sure to tag @kapwingapp with your slow motion creations!

Want to learn more about why cats always land on their feet? Check out this cool article from Animal Planet!

This article is part of a series featuring educational tutorials and lesson plan inspirations for K-12 classrooms! Want to see more? Check out the Kapwing Education Page!