Activity 4

Run the Build an Atom simulation and build a neutral lithium atom and a neutral boron atom.  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. 

 

Neutral Boron Atom  5 Protons, 6 neutrons and 5 electrons.

Density 2.34 g/cm3

 

 

 

Neutral Lithium Atom  3 Protons, 3 Neutrons, 3 Electrons  Density 0.534

 g/cm3

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

Density is the degree of compactness of a substance.

Density is mass/volume. 

Run the Density simulation and complete one activity of the prepared Teaching Ideas and post your results on your blog.  The activity you choose should be one of the student intended activities. 

Complete the Mystery blocks activity of 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. 

Block A yellow: Aluminum

Mass: 65.14kg

Volume: 103.38L

Density: .6204

Block B blue: Ice

Mass: .64kg

Volume: 100.64 L

Density: .0063593

Block C green: Wood

Mass: 4.08kg

Volume:104.08

Density: .0392

Block D red Ice

Mass: 3.10kg

Volume 103.10L

Density: .0300679

Block E purple Brick

Mass: 3.53 kg

Volume: 101.10L

Density: .0349

 

Identify and post on your blog the Science Standards that could be met through these activities completed in Activity 4.

 

B. 4.3 Show how the major developments of scientific knowledge in the earth and space, life and environmental, and physical sciences have changed over time.

C. 4.3 Select multiple sources of information to help answer questions selected for classroom investigations.

D. 4.3 Understand that substances can exist in different states-solid, liquid, gas.    

D.4.2 Group and/or classify objects and substances based on the properties of earth materials.

C.4.6 Clearly be able to explain results of investigations.