[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/dictionaries/school/w/helium.html)

[home](https://md.mova.elamur.ai/free/en/) / [dictionaries](https://md.mova.elamur.ai/free/en/dictionaries/) / [The school dictionary](https://md.mova.elamur.ai/free/en/dictionaries/school/) / helium

[← H](https://md.mova.elamur.ai/free/en/dictionaries/school/H/)

# helium

«helium» in Mova's school dictionary: **A very light gas with no colour or smell that is lighter…** — its meaning for a pupil, its sense in the lessons and examples, with 5 sentences of Mova's corpora that use it.

### part of speech

noun (helium — uncountable)

### meaning for a pupil

1) A very light gas with no colour or smell that is lighter than air; it is used to fill party balloons and airships so they float. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/H/helium/#m1)

2) A chemical element (symbol He), the second lightest of all. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/H/helium/#m2)

### sense in the lessons

In science, helium is lighter than air, so helium balloons rise; the Sun makes helium from hydrogen. It does not burn, so it is safer than hydrogen in airships. Safety: never breathe in helium from balloons or tanks — it can stop you getting oxygen and make you pass out. Phrases: «helium balloon», «filled with helium».

### examples

- The party balloons were filled with helium. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/H/helium/#x1)
- Helium balloons float up into the sky. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/H/helium/#x2)
- Helium is lighter than air. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/H/helium/#x3)
- The Sun turns hydrogen into helium. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/H/helium/#x4)
- Don't breathe in helium; it can be dangerous. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/H/helium/#x5)
- A helium balloon goes floppy after a few days. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/H/helium/#x6)
- Let balloons go only if they won't harm birds and sea animals. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/H/helium/#x7)

### note

Uncountable: «some helium». A gas, not a liquid. The funny squeaky voice trick is not safe. Released balloons come down as litter that can hurt wildlife.

### In the corpora

- [Breathing helium from a gas tank is dangerous: it can harm the lungs and leaves the body without oxygen.](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/2-elements-and-the-periodic-table/13/)
- [Helium atoms are so tiny they slip through the rubber skin of a party balloon, so it shrinks in a few days.](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/20-gases-all-around-breath-and-balloons/6/)
- [Jupiter is a gas giant made mostly of hydrogen and helium, like the Sun, and has no solid surface to stand on.](https://md.mova.elamur.ai/free/en/corpora/school/space/10-jupiter/6/)
- [Like Jupiter, Saturn is made mostly of hydrogen and helium.](https://md.mova.elamur.ai/free/en/corpora/school/space/12-saturn-and-its-rings/6/)
- [A star is a huge ball of hot gas, mostly hydrogen and helium, that makes its own light.](https://md.mova.elamur.ai/free/en/corpora/school/space/17-stars-what-they-are/6/)

### Trees and pragmatics

[Every meaning and example of «helium» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/H/helium/), each sentence with its dependency tree and frames.