helium
word
Definition
Helium is a colorless, odorless gas that is lighter than air and most commonly used to fill balloons and in scientific equipment. It is a chemical element with the symbol He.
Usage & Nuances
"Helium" is a scientific term but appears in everyday life, especially with party balloons. It is not the same as hydrogen, which is flammable. People often associate helium with the high-pitched voice effect caused by inhaling it, but inhaling helium can be dangerous.
Example Sentences
The red balloon is full of helium.
basic
Helium is used in some scientific experiments.
basic
When a balloon has helium inside, it floats in the air.
basic
You can hear a funny voice if you inhale a bit of helium from a balloon.
natural
The lab ran out of helium, so we had to delay the experiment.
natural
Only helium makes balloons float so high at birthday parties.
natural