Last Updated 10 Sep 2020

Science Lab Report

Category Chemistry, Glass, Water
Essay type Report
Words 352 (1 page)
Table of contents


There will be no net movement of water molecules into or out of the potato.


Order custom essay Science Lab Report with free plagiarism report

  • Large potato
  • Cutters (in the shape of a fish)
  • 3 small beakers or clear dishes
  • 3 glass covers
  • Sucrose solution
  • Salt
  • Distilled water
  • Paper towel


  1. Add 200ml of distilled water, 40ml sucrose solution, and 5g salt into three beakers respectively. Record the solutions concentrations, volumes, and weights.
  2. Use a cutter to cut the potato to a similar size. Record the weight of pieces of potato.
  3. Put the three potatoes slice into each beaker.
  4. Cover the beakers with glass covers and leave them for 48 hours.
  5. Carefully remove the potato slices from the distilled water solution & pat it dry on a paper towel.
  6. Weight the potato slices immediately.
  7. Record the final weight of the pieces.
  8. Clean up the equipment & area and return materials to their proper place.


  • Potato slices weight (Before)


Distilled water Potato slices weight (After) (Quantitative)
Sucrose solution 40ml 21. 5g 2g
Salt 200ml 5g 20g

USE TIME: 48 hours


We can Observe that the slice placed in salt is very flexible, while the slice placed in the sucrose solution is flexible but less so. Since potatoes already have sugar, less water will diffuse out of the potato placed in sucrose solution water. The slice placed in water will be rigid since it will absorb water.


The glass can not cover the beakers well, so the data value that we got was too close. We used a big size of the cylinder (500ml) to measure the sucrose solution and distilled water.

150ml water potato weight (before/after) 20g /24g
150ml water potato weight (before/after) 20g/13. 5g
with 15g salt

I compared with Evan’s group, our results roughly the same.


The water molecules move towards higher concentrations of the solution. That means that if the water outside the cell is saltier than the water inside, water will move from the inside of the cell to the outside. As the water left the cell it was much like letting the air out of a balloon. As more and more of the cells lost water, the slice of potato became soft and flexible. (the potato in water with sucrose solution just on the contrary.)

Science Lab Report essay

This essay was written by a fellow student. You can use it as an example when writing your own essay or use it as a source, but you need cite it.

Get professional help and free up your time for more important courses

Starting from 3 hours delivery 450+ experts on 30 subjects
get essay help 124  experts online

Did you know that we have over 70,000 essays on 3,000 topics in our database?

Cite this page

Explore how the human body functions as one unit in harmony in order to life

Science Lab Report. (2017, Jan 12). Retrieved from

We use cookies to give you the best experience possible. By continuing we’ll assume you’re on board with our cookie policy

Save time and let our verified experts help you.

Hire writer