You're on track to get doubled donations (and unlock a reward for the colleague who referred you). Keep up the great work!
Take credit for your charitable giving! Check out your tax receipts

In a rush to make a major tax-deductible gift before the year's end? Purchase account credits and choose projects later!

Time is running out! Make your tax-deductible gift before midnight on December 31.

To use your $50 gift card credits, find a project to fund and we'll automatically apply your credits at checkout. Find a classroom project
Are you a public school teacher in need of funding? Get funded »
Skip to main content

We're a charity that makes it easy for anyone to help a classroom in need. Your gift is tax-deductible.

Your school email address was successfully verified.


Mr. K. from Oakland CA is requesting Supplies through DonorsChoose, the #1 classroom funding site for teachers.

Science or Magic - Experiments with Liquid Nitrogen!

The cost of 1 Cryo Enl Dewar 4.5 LT is $493, including shipping and <a target="new" href="" onclick="g_openWindow('', 300, 800, 'fulfillwindow');return false;">fulfillment</a>.

  • $493 goal

Hooray! This project is fully funded

Hooray! This project is fully funded

I teach physical science to 9th grade students at Oakland Technical High School in Oakland, CA. The students I teach are 85% African American, 10% Latino, and 5% White or Asian. An integral part of my job is finding new and unique ways to engage my students in science and push them beyond the understanding they attained in 8th grade. To assist in my mission, I am requesting a liquid nitrogen Dewar. A Dewar can be thought of as an extremely large and high-tech thermos bottle, and it is the required method to store liquid nitrogen. Liquid nitrogen is extremely cold, nearly 200 degrees below zero Celsius. Due to its extremely cold temperatures, amazing experiments can be performed illustrating many different concepts in physical science! Rather than using salted ice, liquid nitrogen can be used to make ice cream and students would be learning about freezing points and melting points. Liquid nitrogen can be used to make ceramic superconductors and perform an amazing levitation experiment where a magnet actually floats in the air demonstrating properties of electromagnetism! Liquid nitrogen is also just extremely fun and can freeze objects that are otherwise pliable and flexible, such as a rubber ball. Liquid nitrogen can be obtained from welding supply shops or from the nearby UC Berkeley, but the proper Dewar is required to transport it and store it. Otherwise, it will create safety hazards and boil away within a few hours. These experiments and demonstrations, as with all hands-on activities that I do in my class, are so vital to the success of my students. This physical science class is not designated as a lab class and thus any hands-on activities that I do are with limited resources, and usually are realized only as a result of grants that are planned and designed by my colleagues or myself. With your funding support, I know that all of my students will be truly amazed and excited with all the fun and varied concepts that I can teach them about physical science and physics through experiments with liquid nitrogen!

Mr. K.
Grades 9-12
Half of students from low‑income households

Boost your odds

Add a profile photo in addition to your classroom photo. If you add a photo, it'll show up right here on your project page.

You are more likely to receive funding if you put a face to your name.

Upload a photo

2 donors2 donors have given to this project.

This project will reach 150 students.

Top rated for efficiency and transparency.

You donate directly to the teacher or project you care about and see where every dollar you give goes.

Expand the "Where your donation goes" section below to see exactly what Mr. K. is requesting.

See our finances

Where Your Donation Goes

Materials Cost Quantity Total
CRYO ENL DEWAR 4.5 LT • Lab Safety Supply $318.00 1 $318.00

Materials cost


Vendor shipping charges


State sales tax

3rd party payment processing fee

Fulfillment labor & materials

Total project cost


Suggested donation to help DonorsChoose reach more classrooms


Total project goal


How we calculate what's needed

Total project goal


2 Donors


Donations toward project cost


Donations to help DonorsChoose reach more classrooms


Excluded support for DonorsChoose


Still needed View calculationHide calculation


Our team works hard to negotiate the best pricing and selections available.

View complete list Show less

Project Activity

{"pmaHash":"","schoolCity":"Oakland","showProjectRecommendations":true,"teachersOnPage":[11679],"isTeacherViewingTheirOwnProject":false,"schoolState":"CA","teacherPossessivePronoun":"his","PMsManager":null,"schoolGradeType":{"id":4,"name":"High School"},"TeacherPMForms":{},"applePayMerchantID":"","proposalId":19842,"proposalMessageFormModel":null,"numActiveProjects":0,"completingDonationAmount":0,"teacherHasClassroomPhoto":true,"proposalURL":"","verifyShowPhotos":"","numStudents":150,"teacherScreenName":"Mr. K.","authorIds":{"11679":{"owner":"Mr. K.","donationSalutations":{}}},"displayedPercentFunded":1.0,"proposalsOnPage":[19842],"proposalHash":"-932143001","isApplePayMobileOnly":true,"progressBarPercentage":100.00,"pmaId":"","teacherProfilePhotoURL":"","teacherHasProfilePhoto":false,"currentWorkflowStatusCode":22,"teacherChallengeId":40721,"photosPublished":false,"queryString":"","DonorPMForm":null,"isApplePayEnabled":true,"fundedByTarget":false,"activeProject":null,"donorIdsForImpactPhotoCheck":[],"teacherId":11679,"schoolCounty":"Alameda","fullyFunded":true,"isStudentLed":false,"isExpired":true,"schoolStateObj":{"code":"CA","name":"California"}}