Substances and mixtures

3. LET’S HAVE A REVIEW
1. IRON 6. SODIUM
2. GOLD 7. COPPER
3. NITROGEN 8. SILVER
4. SULFUR
9.ALUMINUM
5. POTASSIUM 10. COBALT

4. LET’S HAVE A REVIEW

5. 1.TITANIUM BRACELET (TI)__________ 6. GOLD (AU)_________
2. ALCOHOL (CH3OH) _____________ 7. IRON (FE)___________
3. AMMONIA (NH3) _____________ 8. CARBON DIOXIDE (CO2________
4. SULFURIC ACID (H2SO4) _____________ 9. SILVER (AG)__________
5. COPPER WIRE (CU) ________________ 10. TABLE SALT (NACL)_________
LET’S HAVE A REVIEW

6. PROPERTIES OF METALS, NON-METALS AND
METALLOIDS
1.THIS MEANS THEY ARE SHINY.
2.CAN BE DRAWN INTO THIN WIRES
3.CAN BE BEATEN INTO THIN SHEETS WITH HAMMER
4.DO NOT HAVE LUSTER
5.IT MAKES SOUND WHEN HIT WITH AN OBJECT

8. PURE SUBSTANCES- is a form of matter that has
constant chemical composition and characteristic
properties.
There are Two Types of Substances
Element- is the simplest kind of pure substance.

10. COMPOUND- is a pure substance that are
composed of multiple types of elements (2
or more), chemically bonded to one
another.
compounds cannot be broken down by
physical methods (they can be broken down
by chemical reactions).

12. MIXTURE-it refers to the physical combination of
two or more substances in which the identities of
the individual substances are retained.
THERE ARE TWO TYPES OF MIXTURES
1.HOMOGENEOUS- a mixture of two or more
chemical substances where the different
components cannot be visually distinguished.
a mixture in which the composition is uniform
throughout the mixture.

13. HOMOGENEOUS MIXTURES OF METALLIC ATOMS ARE
CALLED ALLOYS.
STEEL (iron+ carbon)
STAINLESS STEEL (nickel+iron + chromium+ carbon)
BRASS (copper+zinc)
HOMOGENEOUS MIXTURES OF LIQUIDS ARE CALLED
SOLUTIONS.

15. HETEROGENEOUS- a mixture of two or more chemical
substances (elements or compounds), where the
different components can be visually distinguished and
easily separated by physical means.

19. LEARNING TASK 1
DIRECTION: write s if the given belongs to substance and m if it is mixture.
1.Soda With Ice 6. Sugar
2. Salad 7. Iron Metal
3.Soil 8. Diamond
4.Coffee 9. Iodine
5.Gold Necklace 10. Tin
LEARNING TASK 2
Direction: Identify the following whether Homogeneous or Heterogeneous
mixture
1.Wine 6. Sand and pebbles
2. Air 7. Fruit salad
3.Blood 8. Pizza
4.Salt and pepper 9. Tea
5.Soy sauce 10. Orange juice

20. LEARNING TASK 3
ACTIVITY 1-PERFORMANCE (3-5 PICTURES)
#THINKTOCONNECT#SCIENCEMATTERS
DIRECTIONS:Take a picture and make a collage of any
household items or anything found in your place
considered substance or mixture. if substance determine
whether element or compound and if mixture determine
whether homogeneous or heterogeneous.

21. LEARNING TASK 4
DIRECTION: CHOOSE YOUR ANSWER FROM THE SUBSTANCE SYMBOL BELOW.
1. Which substance has the highest boiling point?
2. Which substance has the lowest boiling point?
3. which element melts above 1500 degree celsius?
4. which compound melts at the lowest temperature?
5. which compound will boil at the lowest temperature?
Substance
Symbol
Substance melts at oC Substance boils at oC
Ca 850 1490
Cu 1083 2600
Fe 1540 2900
He -270 -269
NCL3 37 71
Na2CO3 858 890
SiO2 1610 2230

22. LEARNING TASK 5
DIRECTION: CLASSIFY THE FOLLOWING PROPERTIES AS WHETHER CHEMICAL
OR PHYSICAL.
1.MELTING POINT
2. HARDNESS
3.FLAMMABILITY
4. CORROSIVE
5.DENSITY
REFLECTION ON LEARNING
1. WHAT DID YOU ENJOY MOST ABOUT THE LESSON FOR THE WEEK?
___________________________________________
2. WHAT DID YOU FIND CHALLENGING ABOUT THE LESSON?
______________________
*ACCOMPLISH THE LEARNING LOG FOR WEEK 4 AND COPY THE IMPORTANT
TERMS ON YOUR NOTEBOOK.

25. Learning Task 1
Direction: write s if the given belongs to substance and m if it is mixture.
1.Soda With Ice 6. Sugar
2. Salad 7. Iron Metal
3.Soil 8. Diamond
4.Coffee 9. Iodine
5.Gold Necklace 10. Tin
LEARNING TASK 2
Direction: Identify the following whether Homogeneous or Heterogeneous mixture
1.Wine 6. Sand and pebbles
2. Air 7. Fruit salad
3.Blood 8. Pizza
4.Salt and pepper 9. Tea
5.Soy sauce 10. Orange juice