1. EXPERIMENTING… Candles Plastic Fish Tank Baking Soda Bubbles Vinegar

2. 1- CANDLES OFF: WHAT IS GOING TO HAPPEN TO THE BUBBLES?

3. 2A- CANDLES ON: IF WE ADD VINEGAR WHAT IS GOING TO HAPPEN?

4. 2B- CANDLES TURN OFF IN ORDER ACCORDING TO THEIR SIZES (:- o) A Liquid is left Candles Off WHY?

5. SO WHY DID THE CANDLES TURN OFF??????? Vinegar + Baking Soda  Carbon Dioxide Carbon Dioxide STOPS burning Carbon Dioxide is found in some Fire Extinguishers

6. 3- CANDLE OFF:WHAT HAPPENS IF WE ADD BUBBLES AGAIN? A Liquid is left Bubbles Float WHY?

7. SO WHY DID THE BUBBLES FLOAT??????? Carbon Dioxide is a “HEAVY GAS” Carbon Dioxide is heavier (more dense) than AIR AIR will float on Carbon Dioxide A bubble is AIR surrounded by soap

8. CARBON DIOXIDE LAYER NOT VISIBLE LET’S VISUALIZE THIS: WHY BUBBLES FLOAT? AIR LAYER AIR IS INSIDE THE BUBBLE

9. CARBON DIOXIDE Do YOU know what it is? (Sol., Liq., gas) WHERE do we find it? WHY is it useful? CO 2