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Mrs. Benitez from Staten Island NY is requesting Lab Equipment through DonorsChoose, the #1 classroom funding site for teachers.

Student-led project

Density Dilemma!

Help us get triple beam balances and science supplies so we can learn how to calculate mass, density and volume of various objects in class.

  • $567 goal

Hooray! This project is fully funded

Hooray! This project is fully funded

About My Students

Adrianna and Jan are exceptionally bright English language learner students that really benefit from hands on activities. Unfortunately they both were affected by Hurricane Maria that devastated their Island and were forced to move to Staten Island, NY. Despite their efforts to learn the language rapidly, it is still very challenging for them to learn the terminology in science. They are both eager to learn along with 10 other students in that class that are on different reading levels. This is a very hardworking and charming class that speak various languages; Spanish, English and Arabic. What I love most about this class is how appreciative they are and their fascination with science.

My students began learning about the metric system and really enjoyed the hands on experience by using rulers and a tape measure. Currently my students share 1 science lab with the whole school, therefore scheduling and supplies can be limited. A triple beam balance will be used to calculate the weight of various rocks so the students can learn about measurement and mass.

The greatest benefit of this project is that all students can partake in this activity regardless of the language barriers present. Additionally, working in groups with the triple beam balance will help the students develop the skills they need in science while building camaraderie. The content material provides an excellent source of a rich vocabulary, reinforce math, and working in groups will create lasting friendships. All these skills will help them achieve academic success and aid in their social development skills.

In Their Own Words

My goal is to learn how to measure the weight with a triple beam balance so I can be ready for the state science exam this year. It was hard to learn about it using a textbook. I can't wait to use the real thing! I hope to learn about mass and density of different rocks.

- B.M.

We always work in groups in class. We use index cards that we pick that tells us our roles in the group. As a leader of my group I make sure everyone is on task, I check to see if data is being collected and make sure all the work is complete.


This project is important to me and my school community because it is helping us get ready for high school. This project is also important for me because I am learning how to use the international system of measurement by using the triple beam balance. In this project I have to identify the relationship between density of objects and their ability to sink or float. My science group has to analyze a density/float/sink problem and design an experiment to solve that problem.

- J.M.

Mrs. Benitez
Grades 6-8
More than half of students from low‑income households

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Where Your Donation Goes

Materials Cost Quantity Total
BALANCE TRIPLE BEAM PL • School Specialty $81.43 4 $325.72
SIAN REV ROCK ORIGINS • School Specialty $59.95 1 $59.95
PENCIL PRIMARY W/OUT ERASER PACK OF 12 - SCHOOL SMART • School Specialty $3.76 4 $15.04
PAPER LEGAL PADS 5X8 YLW 50-SHT/PD PACK OF 12 - SCHOOL SMART • School Specialty $4.18 1 $4.18

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


5 Donors


Donations toward project cost


Donations to help DonorsChoose reach more classrooms


Excluded support for DonorsChoose


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Project Activity

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