Science Project:
Sinking Objects
Grade Level: 1st - 3rd; Type: Physical Science
Objective:
To investigate which objects float and sink in honey, water, and oil.Research Questions
- Which liquid is more dense - honey, water, or oil?
- Does the size of an object determine its density?
Materials;
- honey
- water
- oil
- 5 small objects of similar size such as a coin, bean, small plastic toy, small cork,
- paperclip, small screw, kernel of cereal, etc.
- clear glass or narrow tube
- paper
- pencil
Experimental Procedure
- Gather the necessary materials.
- Have an adult help pour about 2 inches of water in the glass or tube. Then tilt the glass and slowly pour in about 2 inches of oil, followed by 2 inches of honey. Observe what happens and record.
- Predict which of your objects you think will float and which will sink. Record your predictions.
- Gently drop each object into the glass or tube and observe. Record the results.
- Continue until all of the objects have been tested.
- Analyze your data and draw a conclusion.
References:
“What is Density” at http://www.elmhurst.edu/~chm/vchembook/120Adensity.html “Density” by Martha Marie Day, Ed.D. and Anthony Carpi, Ph.D. at http://www.visionlearning.com/library/module_viewer.php?mid=37 “Density” at http://www.nyu.edu/pages/mathmol/textbook/density.html
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Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.
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