QUARTER 1 CLASS OBSERVATION

2. Differentiate elements and compounds based on
their properties
At the end of the lesson, you should be able to:
Locate elements in the periodic table using their
symbols.
Acknowledge the importance of elements and
compounds in life by giving examples.

3. - Be kind, polite, and
courteous to others.
- Keep your hands and feet
to yourself.
- Be respectful of
classmates, teachers, and
property.
- Listen to the teacher
and classmates and follow
directions.
- Work hard and always do
your best.
- Be safe.
- Raise your hand when you
would like to speak in class
when leaving your seat, or if
you need to leave the
classroom for a reason.
- Be ready to take the
consequences if you break
the rules.

8. substances that are made up of only one
type of atom.
cannot be broken down into simple
substances by ordinary chemical means.

9. metals - hard, lustrous, malleable, ductile,
and readily conduct electricity and heat.
nonmetals - gas or solids; not lustrous,
not malleable, not ductile, and usually poor
conductors of electicity and heat.
semimetals - have properties
intermediate between those of metals
and nonmetals.

10. Gold Chlorine Aluminum Copper

11. substances that are made up of more
than one type of atom.
can be separated into two or more simpler
substances by ordinary chemical
reactions.

12. water table salt toothpaste
methane gas

14. • two or more elements
are combined;
• pure substance;
• elements are present in
fixed ratio by mass;
• homogeneous; and
• cannot be separated by
physical method.
• two or more elements or
compounds are mixed;
• not a pure substance;
• elements are not
present in fixed ratio;
• homogeneous or
heterogeneous; and
• can be separated by
physical method.

15. steel carbon
dioxide
coffee
pizza

18. 1. HCl
2. H2SO4
3. Na2HPO4
4. CaCO3
5. KOH

19. • Identify some examples of
elements and compounds
that can be found at home.
How important are these
substances in your life?

20. 3 things - I have learned about elements
and compounds.
2 things - I cannot forget about elements
and compounds.
1 question - I have in mind about
elements and comppounds.

21. Determine the elements or compounds in the given passage.
Classify the elements into metals, nonmetals, or semi-metals
using the periodic table.
Match the name of the elements with their correct symbols and
compounds with their correct chemical formula.
Create a table/chart on elements and compounds found at your
home. Create a table that lists these substances along with
their element symbols and/or chemical formulas.