ClassX Video Lessons Youtube Channel Next Generation Science Evidence of Chemical Change – Production of a Gas
Have you ever wondered what happens when you drop an antacid tablet into water? It’s a fun and fizzy experiment that shows us something cool about science!
A chemical change is when substances mix together and create something new. It’s different from a physical change, like when ice melts into water, because in a chemical change, the original substances change into new ones.
When you drop an antacid tablet into water, you see bubbles and fizzing. This is because a gas is being produced. The tablet reacts with the water, and this reaction creates a new substance: carbon dioxide gas. The bubbles you see are the gas escaping into the air.
Gas formation is one of the signs that a chemical change is happening. When you see bubbles, it’s a clue that a new substance is being created. This is different from just mixing things together, like stirring sugar into tea, where no new substance is formed.
You can try this experiment at home with an adult’s help. All you need is a clear glass of water and an antacid tablet. Drop the tablet into the water and watch the fizzing action. Can you see the bubbles? That’s the gas being produced!
There are many other signs of chemical changes, like color changes, temperature changes, and even light being produced. Exploring these changes can help us understand the amazing world of chemistry around us.
Remember, science is all about exploring and discovering new things, so keep asking questions and having fun with experiments!
Bubble Race: With the help of an adult, gather a few different liquids like vinegar, lemon juice, and soda. Predict which liquid will create the most bubbles when an antacid tablet is dropped in. Try the experiment with each liquid and observe the fizzing action. Which one produced the most bubbles? Discuss why you think that happened and what it tells you about chemical reactions.
Gas Capture: Try to capture the gas produced by the antacid reaction. Fill a balloon with a small amount of water, then carefully add a crushed antacid tablet. Secure the balloon’s opening and watch it inflate as the gas forms. Discuss how the gas is different from the air we breathe and why it can fill the balloon.
Observation Journal: Start a science journal to record your observations of chemical changes in everyday life. Look for signs like fizzing, color changes, or temperature changes in your surroundings. For example, observe what happens when you mix baking soda and vinegar. Write down what you see and think about why these changes occur.
Sure! Here’s a sanitized version of the transcript:
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Chemical change: evidence of chemical change. What changes occur when an antacid tablet is dropped into water? Gas is formed. Fizzing and gas formation are evidence of chemical change.
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