Activity Five!

To complete Activity 5, complete the tasks below:

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.

Lithium: 3 protons, 3 electrons, 4 neutrons.

Boron: 5 protons, 5 electrons, 6 neutrons.

2. Define density and the equation for density and post on your blog.

Density is the mass per unit volume.  The equation for finding density is mass divided by the volume which means d=m/v.

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.

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.

Blocks.	Mass (kg).	Volume (L).	Density (kg/L).	Material.	Known density.
A.	65.14 kg.	3.38 L.	19.27 kg/L.	Gold.	19.3 kg/L.
B.	0.64 kg.	0.64 L.	1.00 kg/L.	Water.	1.00 kg/L.
C.	4.08 kg.	4.08 L.	1.00 kg/L.	Water.	1.00 kg/L.
D.	3.10 kg.	3.10 L.	1.00 kg/L.	Water.	1.00 kg/L.
E.	3.53 kg.	1.00 L.	3.53 kg/L.	Diamond.	3.53 kg/L.

5. Identify and post on your blog the Science Standards that could be met through these activities completed in Activity 5

C.4.2 Use the science content being learned to ask questions, plan investigations, make observations, make predictions, and offer explanations.

C.4.4 Use simple science equipment safely and effectively, including rulers, balances, graduated cylinders, hand lenses, thermometers, and computers, to collect data relevant to questions and investigations.