Classwork-Monday, February 26, 2024

Computer 

Readworks Article of the Day- Pick a Boost or Challenge article 

Grammar-Irregular Verbs p. 112-113 

Reading-read story “Cougars”; complete RNB p. 109-110

Vocabulary-p. 124-125 

Band/Choir 

Math-Interpret a Remainder p. 114-115 

Religion-Ch. 10 Baptism read p. 131-133 

Science-Lesson 2 notes (cont.); Build a molecule website https://phet.colorado.edu/sims/html/build-a-molecule/latest/build-a-molecule_en.html

Molecules

-Atoms combine with other atoms to form a molecule

-Molecule smallest particle of a substance

-Some molecules share electrons

-Some electrons no longer circle around the atom

they can go around two or more atoms, they are 

bonded together

Compounds

-type of matter made of a combination of elements

-combined into a molecules

-most things around you are compounds

-every molecule of a compound has the same combination of elements

Ex: water H2O every molecule of water contains 2 hydrogen atoms and one oxygen atom

-properties of compounds are different from the properties of elements that make them up

Ex: water is a liquid-at room temperature hydrogen and oxygen are invisible gases and do not have a smell

Ex: sugar made of hydrogen oxygen (gases) carbon (similar to pencil lead)

Chemical Formulas

-every compound has a name and formula

-formula shows how many atoms of each element are in the compound

Ex: formula-H2O, name water,  2 hydrogen, 1 oxygen

formula-CO2 name-carbon dioxide, 1carbon, 

2 oxygen

formula-C6H12O6, name glucose, 6 carbon, 

12 hydrogen, 6 oxygen

No number after the letter means only one atom

2 molecules of water is written 2H2O

4 molecules of carbon dioxide is written 4CO2

3 molecules of glucose is written 3C6H12O6

Must be able to identify the elements in a molecule and how many atoms of that element are in the molecule

How many elements in water?  

H2O elements are hydrogen and oxygen for a total of 2 elements

How many atoms are in water?

2 hydrogen + 1 oxygen for a total of 3 atoms

Art