fairfolio
Saved Projects

A Heating Pad that Stays Warm

CSEF · 2019 Materials Science (Junior Division Only)

Jasmine S. VanRenselaar · Ocean Grove Charter School, Boulder Creek, Santa Cruz County

Overview

Objectives My objective is to determine which combination of materials creates a heating pad that stays warm for a long time. Methods 4 types of fabrics for outside, 3 types of grains for inside, infrared thermometer. Made 12 heating pads of identical size and volume of fillings, each of a different fabric and filling, heated up the bags for 2 min, and then took the temperature of the bags every 10 minutes until under 28 degrees Celsius. Results All of the bags made of flannel cooled off quite fast while the fleece bags stayed the warmest. Overall jasmine rice stayed warm for the longest amount of time while the rolled oats were often the fastest to cool down. Conclusions The rolled oats got hot very fast then dropped rapidly and finished decreasing slowly in all the fabrics, the jasmine rice and fleece stayed warm the longest by about 3.4 minutes.

Summary statement

By making heating pads of various materials I found that a heating pad made of fleece and filled with jasmine rice stays warm the longest.

Help received

I designed and conducted this experiment on my own.

Competition history

  • CSEF 2019 Materials Science (Junior Division Only) · Entry J1324

Resources

Related projects

Closest projects by meaning, across every fair and year in the corpus.

Browse more like this

Source: California Science & Engineering Fair public projects

Save projects to your library

Sign in with Google to keep track of projects you find interesting, organized into folders. An account also raises your daily allowance for “Has this been done?”, and lets you create a key for the MCP server with a much higher limit than anonymous use. Browsing stays public.

Continue with Google