Page 93 - Canadian BC Science 9

FOLDABLES TM Reading & Study
Skills
Make the following Foldable and use it to take notes on what you learn in Chapter 3.
What You Will Learn
In this chapter, you will
• distinguishbetweencovalentandionic
compounds
• demonstrate understanding of chemical
names and formulas of ionic compounds
• differentiate between chemical and
physical change
• describeapplicationsofchemical
technology
Why It Is Important
Almost everything in our world is made of compounds and mixtures of compounds. Our whole society depends on the production and wise use of compounds.
Skills You Will Use
In this chapter, you will
• writechemicalformulasgiventhenames,
and chemical names given the formulas
• observechangesinmatter
• communicateyourunderstandingofhow
substances are altered during chemical and physical changes
STEP 1
STEP 2
Fold a sheet of copy paper in half lengthwise (hot dog fold).
Fold in half to form
two equal sections,
fold in half again to
form four equal sections, and in half again to form eight equal sections.
Fold here
Fold here
Fold here
STEP 3
STEP 4
Open the folded paper and cut along the fold lines of one side only to form eight tabs.
Label the tabs as illustrated. Draw two circles as shown.
Similarities and Differences As you read this chapter, use your Foldable to find similarities and differences between covalent and ionic compounds and to differentiate between chemical and physical change.
Chapter 3 Elements combine to form compounds. • MHR 75
Covalent Compounds
Both
Ionic Compounds
Chemical Names
Chemical Formulas
Chemical Change
Both
Physical Change