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Does Hot Water Freeze Faster Than Cold Water? Instructional VideoDoes Hot Water Freeze Faster Than Cold Water? Instructional Video
Publisher
SciShow
Resource Details
Curator Rating
Educator Rating
Not yet Rated
Grade
9th - 12th
Subjects
Science
1 more...
Resource Type
Instructional Videos
Media Length
2:33
Audiences
For Teacher Use
1 more...
Duration
10 mins
Instructional Strategy
Direct Instruction
Technology
Video
Year
2015
Usage Permissions
Fine Print
Language
English, Other
Instructional Video

Does Hot Water Freeze Faster Than Cold Water?

Curated and Reviewed by Lesson Planet

Hot water freezing faster than cold water is called the Mpemba effect. The interesting video analyzes the concept of water temperature and its effect on freezing rates. The narrator explores past experiments showing this effect and discusses when the case is true for hot water freezing before cold. Although asking whether hot water freezes faster than cold water is a great question, the narrator admits he cannot truly give a definitive answer. 

3 Views 2 Downloads
CCSS: Adaptable

Concepts

water, water temperature, freezing points

Additional Tags

science

Instructional Ideas

  • Make ice cream in class and have two batches — one made with cold water and one made with hot water — to see which freezes first
  • Have pairs research the Mpemba effect (how it was discovered, by whom, and if it is true) and share their findings with the class

Classroom Considerations

  • Video is appropriate for middle and high school learners
  • This video is hosted on YouTube

Pros

  • Pop-up boxes throughout the video are links to other related videos
  • Turning on auto-translate in the settings allows viewers of many different languages to watch the video in their native language through closed captioning

Cons

  • None

Common Core

RST.9-10.2

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Activity

Science Buddies: Investigate Mpemba Effect Can Hot Water Freeze Faster Than Cold

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This physics project seems like it should have an easy answer. Instead, it turns out to be a great illustration of why it is important to base scientific conclusions on the outcome of controlled experiments. Things don't always turn out...
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Activity

Why Can Warm Air "Hold" More Moisture than Cold Air?—Vapor Pressure Exercise

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Lab Resource

Can Boiling Make Something Freeze?

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