http://www.eia.gov/kids/energy.cfm?page=fp_edison
http://www.eia.gov/kids/energy.cfm?page=fp_tesla
What is an Electromagnet?: http://www.coolmagnetman.com/magelect.htm
- http://www.allaboutcircuits.com/vol_1/chpt_1/3.html;
- http://www.coolmagnetman.com/magelect.htm;
- http://www.bbc.co.uk/bitesize/ks2/science/physical_processes/circuits_conductors/read/2/;
- http://www.bbc.co.uk/bitesize/ks2/science/physical_processes/circuits_conductors/read/3/;
- http://www.sciencetech.technomuses.ca/english/schoolzone/Info_Electricity.cfm#conduct;
4th Grade Unit 2: Mixtures and Solutions
http://www.chem4kids.com/files/matter_solution.html
http://www.chem4kids.com/files/matter_mixture.html .
http://www.fossweb.com/modules3-6/MixturesandSolutions/activities/junkyardanalysis.html
http://www.harcourtschool.com/activity/mixture/mixture.html
http://www.bbc.co.uk/schools/scienceclips/ages/10_11/rev_irrev_changes.shtml
4th Grade Unit 1: Physical Properties of Matter
Reading a Triple Beam Balance: http://www.wisc-online.com/objects/ViewObject.aspx?ID=gch202
Photos from Edupic: http://www.wisc-online.com/objects/ViewObject.aspx?ID=gch202
Changes in Matter: http://www.bbc.co.uk/schools/ks2bitesize/science/materials/changing_state/play.shtml
Photos from Edupic: http://www.wisc-online.com/objects/ViewObject.aspx?ID=gch202
Changes in Matter: http://www.bbc.co.uk/schools/ks2bitesize/science/materials/changing_state/play.shtml