jq eighth
DESCRIPTION
journal questions for 8th graders 3rd quarter 2009.TRANSCRIPT
01/12/09
•Give three examples of an element.
01/13/09
•What is the difference between an element and a compound?
01/14/09
•Give three examples of compounds.
01/15/09•Define these mixtures:
– Fog– Diet coke– Chili– Chocolate chip cookie dough– Mouthwash– Butter
01/19/09•List three indications of a chemical reaction as observed in the “Rxn in a Bag” lab.
01/20/09•List the elements found in the compound AgNO3
01/21/09•List the elements found in the compound BaCrO4
01/22/09•How many atoms are in the compound Hg2SO4?
•Bring $1 for our lab!
01/23/09
•List the elements and number of atoms found in C12H22O11
01/26/09
•List the elements considered to be inert gases.
01/27/09
•Draw Lithium as a Bohr diagram
01/28/09
•How many shells does each atom have in the row starting with potassium?
01/29/09
•How many e- do the halogens have in their valance?
02/02/09
•What causes the dye to spread?
02/03/09Compare the mass of the molecules at the center & edge of a chromatography spread. Why?
02/04/09Give an example of a molecule with a covalent bond.
02/05/09Give an example of a molecule with an ionic bond.
02/06/09•Describe the difference between a covalent and an ionic bond.
02/09/09•What is an emulsion?
02/10/09•Order these from smallest to largest:
•Mixture, quark, atom, molecule, electron,
02/11/09•Name two ways that a suspension can be separated.
02/18/09•Name two ways that a solution can be separated.
02/19/09•What type of mixture is an emulsion?
02/20/09•Describe the Tyndell Effect.
02/23/09•How would you separate a mixture of sugar, sand & H2O?
02/24/09•You should be cramming for your test!
02/25/09•You should be finishing your test!
02/26/09•Explain the Greek meaning of the word “atom.”
03/06/09•Draw and explain Thompson’s atom model.
03/09/09•Draw and explain Rutherford’s atom model.
03/10/09•Draw and explain Bohr’s atom model.
03/24/09
•What is an isotope?
03/25/09•Which particle consistently determines element type?
03/26/09•Which isotope has one proton and one neutron?