Moles on Halloween 2013
Congrats for a successful Mole Day, October 23, 2013. The moles are ready for Trick-or-treat tonight. So if you see a mole, give it a snickers (R) so that it will move on to the next yard. 6:02 x 10 ^23 a mole and Avogadro's . . . read more
Chem Comm Water Article
Read the article and answer in a paragraph or two the following questions: Seagras s 1) What are four reasons that seagrass is important? 2) How is sulfur analyzed by scientists? 3) What does the bacteria do to the health . . . read more
Physics Impulse and Momentum Guides
Chapter 7 Early Problems
Attached are the starred solutions to the chapter 7 skip 2's physicsch7p12 Physicsch7p13 physicsCh7p20 PhysicsCh7p21 Enjoy. I'll give you a few more days to review read more
Physics homework Jan 28th
Attached are the files for problems 52 yes 52 but I labelled it wrong in the beginning. It's still a baseball problem Physicsenergy52 then 53 Physicsenergy53 and finally 60 Physicspower60 none of . . . read more
Physics Homework Part 2
Below is the video for problem #37 in Chapter 6. The sound still seems a bit of the issue. It runs 4:42 even with the drawing in place. Good luck and enjoy the rest of your weekend. Mr.L ch6prob37 read more
Physics homework
PhysicsCh6no36 give it a try and see what happens. The sound is not the best. need a speaker headset to work on this. read more
Chemistry in the Community Interview
The project is due on February 4, 2013. Students are to interview a family member over the age of 65 with the following questions in mind: How would you describe the location where you lived as a child--urgan, suburban, or rural? . . . read more
National Chemistry Week
This is the 25th Anniversary of National Chemistry Week. Nanotechnology: The Smartest BIG Idea in Science! Attached is the outreached publication by American Chemical Society and Nanoscience Informal Science Education . . . read more
Boys Track to State
The Comet Boys Track Team has qualified 7 runners to the IHSA State Meet for May 24 at Eastern Illinois University. The runners include Seniors: Matt Dixon, Ryan Hull, Troy McCreery, Jose Munoz, Mitchell Wainwright and Zach Wainwright; and . . . read more
Temporary site for syllabi
For Chem Comm For Inorganic Chemistry For Physical Science For Physics read more
Computer Imagine of Molecules
The Inorganic and Chem Comm students are relating the chemical formulas to 3D images created in a computer program. The inorganic students are studying the effects electron behavior to whether the compound should be named as an ion, covalent . . . read more
Mole Day 2009
Central High School went to the Museum of Science and Industry in Chicago for the annual Chemical Industries Council of Illinois' Career Day on Friday, Oct. 23, 2009. The inorganic chemistry students watched demonstrations by Lee Merek, . . . read more
Back in the Science Laboratory
Inorganic Chemistry Studying the Law of Conservation of Matter
Inorganic chemistry students are finding their way in the laboratory by measuring solids and liquids in a variety of techniques. The students enjoy having the opportunity to partner with classmates and use cooperative learning during the . . . read more
Summer Cross Country
July and August Optional Practices
The following dates are listed for Comet Cross Country with times and place. July 7 and 9 beginning at 4 and 5 PM in Clifton at the sign; July 20, 21, and 23 at 4 and 5 PM in Chebanse Elementary south parking lot; July 27, . . . read more
Gas Laws for Inorganic
The Chemistry Class is ending the Gas Laws Chapter and will be tested Friday, March 6, 2009. Studying gas laws requires the collection of data such as volume, pressure, temperature, and the number of moles. In the calculations of the lab, . . . read more
Physics Races
Central Physics students were early rising to race their potential energy vehicles in February. We had 12 students in the competition to power a car to travel on a 12" balloon. Red was used for Friday the 13th, just before Valentines Day. . . . read more
Inorganic Final
Inorganic Chemistry is finishing up the semester with ionic and covalent compounds. In order to show ionic lattice structures and their differences, students finished the semester with the Alum Lab. The crystals were created in two days . . . read more
The Mass of Chemistry
Inorganic and Chemistry in the Community are discovering the Periodic Table and working through the measurement of the atom. It also corresponded well with "Mole Day" 10/23 from 6:02 AM to 6:02 PM. Students were helpful for providing . . . read more
To contact Mr. Ladehoff
e:mail dladehoff@cusd4.org phone CHS at 815-694-2321 read more
