Chemical reaction experiment

1. EXPERIMENT
WHAT CHANGES?

2. FACTUAL AND CONCEPTURAL
• FACTURAL
• WHAT ARE THINGS MADE FROM? HOW DO WE CLASSIFY MATERIALS?
WHAT CHANGES DO WE OBSERVE EVERYDAY? HOW DO PHYSICAL
CHANGES HAPPEN? HOW DO CHEMICAL CHANGES HAPPEN?
• CONCEPTURAL
• HOW MIGHT PHYSICAL AND CHEMICAL CHANGES HELP US TO
MANIPULATE MATERIALS?
• WHAT DOES PURIFY MEAN IN SCIENCE?

3. FIND OUT, EXPLORE AND TAKE ACTION
• FIND OUT: WHAT KINDS OF MATERIALS THERE
ARE, HOW THEY CAN BE COMBINED TO MAKE NEW
MATERIALES AND HOW MATERIALS CAN BE
CHANGED.
• EXPLORE: THE WAYS IN WHICH WE CAN
MANUPULATE MATERIALES TO MAKE NEW THINGS
OR PURER MATERIALS.

4. PHYSICAL CHANGES, CHEMICAL CHANGES
AND CHEMICAL REACTIONS
• PHYSICAL CHANGES: MELTED CHOCOLATE IS STILL CHOCOLATE AND MELTED
ICE IS STILL WATER. THESE ARE PHYSICAL CHANGES. (CHANGES OF STATE)
• CHEMICAL CHANGES: WHEN SPAGETTII IS COOLED, IT CHANGES PROGERTIES.
AFTERWARDS, THE SPAGHETTI HAS UNDERGONE BOTH A PHYSICAL CHANGE
CALLED HYDRATION AND CHEMICAL CHANGES TO THE CARBOHYDRATE AND
PROTEIN MOLECULES INVOLVING A CHEMICAL REACTION.

5. EXPERIMENT: MIXING
VINEGAR AND BAKING SODA
• INQUIRY QUESTION: HOW DO PHYSICAL OR
CHEMICAL CHANGES HAPPEN IF WE MIX TWO
DIFFERENT MATTERS?
• EQUIPMENT: VINEGAR, BAKING SODA, BEAKER,
STIRING ROD, SPATULA
• PROCEFURE
• 1. FIRST PREPARE A BEAKER, TIRING ROD,
SPATULA ON THE TABLE.
• 2. SLOWLY ADD VINEGAR TO A BEAKER
• 3. ADD SLOWY BAKING SODA USING SPATULA.

6. HYPOTHSIS
• WHAT PHYSICAL OR CHEMICAL
CHANGES HAPPEN?
• WHAT DO YOU THINK?
• WRITE YOUR HYPOTHSIS ON
YOUR LABREPORT.

7. OBSERVE THE RESULT AND
ANALYSE IT
•DEBATABLE: SEE THE
RESULT
•NOW SHARE AND
COMPARE YOUR
THOUGHTS AND IDEAS
WITH THE WHOLE