Grossmont College Dry Ice Experiment for Kids Video Questions

Chemistry is the study of matter. So how does one study matter, you may ask? One studies matter by following the “Scientific Method”. In a more general sense, we can observe matter how it behaves by making observations, hypothesizing, doing experiments and making conclusions through our observations and experimentation. Below is a video about Dry Ice.

After watching this video, you will answer some questions. You may not know all the answers, and PLEASE, do NOT google the answers to these questions. This is an exploration of your mind only. From your experiences of previous classes and your own intuition, what do you observe? Try to think like a chemist. Use your mind from common knowledge of things that you have learned in previous classes and your own life experiences. Please be honest!

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Think in terms of matter and its physical and chemical changes. The video will show 10 different demonstrations when using dry ice. Try answering these questions.

(Note: Physical Change – matter that has specific characteristics and changes its form. Chemical change – matter that changes its chemical composition resulting from chemical reaction and its identity is changed.)

Do you know what dry ice is?

What state is dry ice found in at room temperature? Is it a solid, liquid or gas? What is its color?

Can you pick up dry ice with your bare hands? Why or Why not?

What happens when dry ice is placed in water in demo 1?

Do you see dry ice in a liquid form?

What happens when a balloon is filled with dry ice? What is the gas?

In demo #6, why is dry ice changing colors when acid and base is added to the solution? What can you conclude about the pH of dry ice?

Observe what happens when a hammer is break the dry ice. Yes, it breaks, but how? small pieces, large pieces? Does it break easy?, Takes many hits before it can break? What can you conclude?

Can you eat the ice cream made with dry ice?

In demo #10: What happens to the bubbles when they hit the table? They get larger, smaller? Why is this so?

Why the bubbles do not fly away like a helium balloon?

After seeing these demos, what kind of overall conclusions can you make about dry ice in terms of its physical properties?

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