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Rainbow Density Lab Report
284
DENSITY RAINBOW LAB REPORT
By: Michael N, Christopher and Alijah
Thanks for listening!
Purpose Statement
The purpose of this lab experiment is to discover the densities of different substances and determine whether or not they can be manipulated to fit over top of another substance without mixing into the fluid on the bottom. The second purpose of this experiment is: to achieve an understanding of the buoyant forces and gravitational forces acting on certain objects and fluids within our container.
Purpose
Hypothesis
Answer:
Hypothesis
Density in different substances and density in different objects?
How do they act in a glass container?
Our hypothesis is: that the less dense objects will float on the top of certain fluids, and the more dense objects will sink to the bottom of those given fluids. For example the green bead and the orange plastic ring will float due to their low density measures. Whilst the red cough drop will sink to the bottom due to a high density measure. A slightly different example would be the yellow ball; which would make it quickly sink due to a quick release in density. Which in turn will cause it to sink at first but it will then it will rise due to a rise in buoyant force and stay there due to the buoyant force overpowering the force of gravity.
If we were to stack each fluid on top of each other in a consecutive order following the deinsty measures from highest to lowest denstities. I know that we would end up with a fluid tower/ density rainbow that would be possible because of their density measures and the way they act with different substances. Which allows them to fill the jar because of their state in matter (liquid) which gives each substance the ability to fill their container despite mass and density.
Our hypothesis is: that the less dense objects will float on the top of certain fluids, and the more dense objects will sink to the bottom of those given fluids. For example the green bead and the orange plastic ring will float due to their low density measures. Whilst the red cough drop will sink to the bottom due to a high density measure. A slightly different example would be the yellow ball; which would make it quickly sink due to a quick release in density. Which in turn will cause it to sink at first but it will then it will rise due to a rise in buoyant force and stay there due to the buoyant force overpowering the force of gravity.
If we were to stack each fluid on top of each other in a consecutive order following the density measures from highest to lowest denstities. I know that we would end up with a fluid tower/ density rainbow that would be possible because of their density measures and the way they act with different substances. This allows them to fill the jar because of their state in matter (liquid) which gives each substance the ability to fill their container despite mass and density.
Variables
We are measuring to find out the densities of different substances and objects by dropping them in fluids and stacking fluids on top of each other in the form of highest to lowest densities (in a jar).
We are manipulating or allowing ourselves to change the amount of each substacne and the amount of each object's density as well as their quantities.
Variables
Their are no constant variables within this project other than the one mason jar.
The controlling component of this experiment is the experiment itself and the fluids and solids within the jar, these will help us determine wether or not the independent variable is dependent on the dependent variable.
Materials
- green bead
- orange plastic ring
- yellow ball
- red coughdrop
- Honey
- maple syrup
- Dishsoap
- Water
- Vegetable oil
- Dishsoap
- Vinegar
Procedure
Procedure
1. Pour honey in as slow as possible
2. Pour in maple syrup the same way
3. Pour in dishsoap the same way
4. Pour in water the same way
5. Pour in vegetable oil the same way
6. Finally pour in vinegar
sure to pour in each fluid carefully, as to not spill any or mix any into the other ones because mixing= a substance dissapearing)
7. The final step: add in each one of our 4 objects and watch as they sink or float! Because of _________!
Conclusion
After preforming this experiment, we have found out that our hypothesis was correct. The less dense objects floated to the top, and the more dense objects sunk to the bottom. We have also found out which liquids are more dense than others (eg: oil is less dense than water) by performing this experiment. The bead and the orange plastic ring were less dense. So
they floated. But the cough drops sunk, because the were more dense and were not hollow.
Data Analysis
In conclusion, density is the amount contained in a given volume. The substances and items with more density will sink to the bottom, while the substances and items with less density will float to the top. The dependant is the substances' density and the objects density is the independant. They are related because the substances' density is required to measure the objects mass. The object will only o the layer that it is lighter to. The object's ability to float or sink is from density and mass.
Data Analysis #2
The purpose of this lab report is to find out how density effects different objects/substances. to do this you need a jar, a glass cup or beaker. Put honey, maple syrup, dish soap, water and vegetable oil all in that order (These objects can be replaced). Watch the objects float on top of one another. Our hypothesis is that each object with a different density will be in a different substance. In science class, we have learned that density effects where objects float and how objects sink or float. We can apply this experiment to real life by figuring out densities of objects in water. (Eg: Cruise ship and a submarine).