Class- Monday,March 03/08/10

Today students worked on

• vocabulary related to nuclear reactions
• chemical reactions v/s nuclear reactions

Homework:

• complete the guided reading worksheet 
•  correct the mistakes from the test paper and justify your answers.

Class-Thursday,March 03/04/10

Review: compare and contrast between chemical reactions and nuclear reactions

Today  students learned about radioactive/nuclear decay in terms of alpha decay,beta decay and gamma decay.

Homework: study your class notes at home.

Class-Wednesday,March 03/03/10

Review: Isotopes v/s radioisotopes
Today students learned about :

• Nulear Decay in which an unstable atomic nuclei convert into stable nuclei by emitting alpha,beta perticles and/or gamma radiations.
• What are alpha particles and their properties?

Homework: Study your class notes at home.

Reminder: 3rd 9 weeks exams from March 17-19

Class- Tuesday,March 03/02/10

Review: Chemical reactions and Isotopes

Today student learned about the

• difference between the chemical and nuclear reaction.
• Activity: Students made a model of the Beryllium atom having 4 protons(red pom-pom balls) and 4 neutrons(green pom-pom balls).They showed the decay of the Be-atom by losing a particle thas has 2-protons and two neutrons.So they removed 2 red and 2 green pom-pom balls from the atom.Their nuclear models was representing new element.Which is contradictory to chemical reactions.(Visual, Logical)  

Homework: Q1-4 Page number-198 from text book

Class- Monday,March 03/01/10

 Class discussion about Friday's Test

Class-Thursday,February 02/25/2010

Today students composed a comic story considering themselves as a element from the periodic table. They had to choose 7 other elements from the group 1,2 & 13- 17.Based on their characteristics they had to show if they can be the friends of some elements and form a bond or not.

Review for the Friday's test 02/25/10

Homework: Study your notes and previous tests

Reminder: Test on Friday(02/26/10)

Class-Thursday,January 01/24/2010

Today students learned about the:

•  applications of law of conservation of mass
• Exothermic and endothermic reactions, examples and graphical representation of both types of equations

Reminder: test on Friday 02/26/10

Class-Tuesday,February- 01/23/10

Reviewed  previously learned  concepts by completing quiz from USA TEST PREP

Students designed a model of four types of chemical equations by using M&M's

Homework: Wtite the formula and names of the given compounds/molecules

• Li & O
• H & O
• P & Cl
• Na &  I

Reminder: class-test is on Friday 02/26/10

Class-Monday,February 02/22/10

Students made foldable(table fold) for the types of chemical reactions.
They learned about the :

• Signs of the chemical reactions
• Why it matters- how it is related to everyday life?
• In a chemical reaction,bonds are rearranged between atoms
• Bonds - broken down- energy is absorbed(endothermic reaction)
• Bonds-formation- energy is released(exothermic reaction)

Homework- Q1-3 page 195

Class-Friday,February 02/19/2010

Today students worked on the

Station about the Law of conservation of mass:

• they classified and balanced the chemical equations
• they created models of chemical equations by using gum drops.