1. Run the Build an Atom simulation http://phet.colorado.edu/en/simulation/build-an-atom and build a neutral lithium atom and a neutral boron atom. Take a picture, or a screen shot, of these two atoms and place them on your blog. List the number of protons, neutrons and electrons for each. Also look up and post the density for each of the elements on your blog.
protons=3
neutrons=3
electrons=3
density= 0.53
Boron:
protons=5
neutrons=6
electrons=5
density= 2.34
Density is the quantity of mass per unit volume
Density = mass/volume
3. Run the Density simulation http://phet.colorado.edu/en/simulation/density and complete one(your choice) of the prepared Teaching Ideas and post your results on your blog. The activity you choose should be one of the student intended activities.
Chosen activity: Relative Density-Sink of Float
Wood: Mass= 2.00 kg
Volume= 5.00 L
Density= 0.40 kg/L
Floats!!
Ice: Mass= 4.60 kg
Volume= 5.00 L
Density= 0.29 kg/L
Alsmot sinks, still afloat a little bit!
Brick: Mass= 10.00 kg
Volume= 5.00 L
Density= 2.00 kg/L
Sinks!!!
Aluminum: Mass= 13.50 kg
Volume= 5.00 L
Density= 2.70 kg/L
Sinks!!!
4. Complete the Mystery Blocks activity on the Density simulation. Post on your blog the data you collected (mass, volume, and density) and the identification of the material and the known density.
Volume | Mass | Density | Object |
3.38 | 65.14 | 19.27 | Gold |
.64 | .64 | 1 | Water |
4.08 | 4.08 | 1 | Water |
3.08 | 3.10 | .99 | Water |
1.00 | 3.53 | 3.53 | Diamond |
.
5. Identify and post on your blog the Science Standards that could be met through these activities completed in Activity 5
For the density simulation I completed standard A: Science as inquiry for grades 5-8 and 9-12
and standard B: physical science for grades 5-8 and 9-12
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