The Amazing World of Bubbles
Bubbles are beautiful and fun to watch. You can find them in your kitchen sink when you wash dishes. You can find them in your bathtub when you use soap. Some bubbles are very small, and some are as big as a beach ball. They float in the air like tiny clouds. Most people love to blow bubbles on a sunny day.
What exactly is a bubble? A bubble is just a little bit of air trapped inside a thin skin. This skin is made of water and soap. If you only use water, you cannot make a bubble. The water would just pull together and fall. Soap helps the water to stretch out. It makes the water skin strong enough to hold the air.
Have you ever noticed that most bubbles are round? This is because a round shape is very strong. Scientists call this round shape a sphere. The air inside the bubble pushes out against the skin. The soap skin pulls in as tight as it can. A sphere is the best shape for keeping the air safe inside. Even if the wand is square, the bubble will be round.
- Sphere:
- A shape that is perfectly round like a ball.
- Evaporation:
- The process where water dries up and turns into a gas.
- Skin:
- A thin layer that holds something together, like the soap and water on a bubble.
- Foam:
- A mass of small bubbles grouped together, often seen on waves.
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Preview questions from this passageShowHide
- 1Where are two places inside your house where you might find bubbles?
- 2What two things is the skin of a bubble made of?
About this explanatory article passage for 2nd Grade
âThe Amazing World of Bubblesâ is a explanatory article reading passage about Bubbles, written for 2nd Grade. It takes about 4 minutes to read (578 words) and comes with an interactive quiz and a printable worksheet with comprehension questions and an answer key.