Scientists dropped 20,000 tiny atoms to test a big idea. The atoms fell just like Einstein said they would. It was a fun and cool experiment!
Study these words before reading the article. Click the audio button to hear pronunciation.
Very, very small
“The bug is tiny.”
A very small part of everything around us
“An atom is too small to see.”
Let something fall down
“I dropped the ball on the floor.”
Able to think and learn well
“She is a very smart girl.”
Something you do to find an answer
“We did a test in school today.”
A way to try something and see what happens
“The science experiment was fun.”
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Click on any underlined word to see its definition. Highlighted words are from the vocabulary section.
Do you know about atoms? They are tiny! You can not see them. They are very, very small. Scientists dropped 20,000 atoms. The atoms fell down. It was a big test!
A smart man named Einstein had ideas. He said falling things feel no gravity. He called it his happiest thought. Scientists wanted to test his idea. They used very cold atoms.
The atoms fell just like Einstein said! The test worked. Scientists were very happy. This experiment helps us learn more. Our world is full of cool science!
Test your understanding of the article with these multiple-choice questions.
What did the scientists drop?
How many atoms did they use?
Who had the big idea about falling?
What did Einstein call his idea?
Did the test work?
Answer these comprehension questions about the article.
What did the scientists drop?
How many atoms did they use?
Who had the big idea about falling?
What did Einstein call his idea?
Did the test work?
Share your opinions on these open-ended questions.
What would you do if you were a scientist?
Can you think of things that fall down?
What is your favorite thing about science?
If you could do any experiment, what would it be?
What is the smallest thing you have ever seen?
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