exoatmospheric
Something that exists or happens outside of Earth's atmosphere, which is the air that surrounds our planet.
Syllables
6 syllables
Letters
Phonics breakdown
Phonics Rule: Short E
The letter E makes a short sound, like in 'bed' and 'red'.
When the letter E appears in a closed syllable, it usually makes the short E sound /ɛ/. This is often confused with short I by new readers.
Tip
E says /ɛ/ like an egg on your head.
Examples
Phonics Rule: Letter X
The letter X usually makes the /ks/ sound, like in 'fox', 'box', and 'mix'.
X is unusual — it represents two sounds blended together: /k/ + /s/ = /ks/. At the start of a word it sometimes makes a /z/ sound (xylophone). At the end of words it reliably says /ks/.
Tip
X says /ks/ — like a fox in a box!
Examples
Phonics Rule: OA Vowel Team
When O and A are together, they say long O, like in 'boat' and 'road'.
The vowel team 'oa' reliably makes the long O sound /oʊ/. This is one of the more consistent vowel teams.
Tip
O and A in a boat — O does the talking!
Examples
Phonics Rule: Letter T
The letter T makes the /t/ sound, like in 'top', 'tap', and 'ten'. The tongue tip taps behind the upper teeth.
T is a voiceless alveolar stop. The tongue tip touches the ridge behind the upper teeth and releases with a puff of air. Double T (tt) makes the same /t/ sound.
Tip
T taps — touch your tongue to make /t/!
Examples
Phonics Rule: Letter M
The letter M makes the /m/ sound, like in 'map', 'mud', and 'mop'. Both lips press together with voice through the nose.
M is a voiced bilabial nasal — both lips press together while the voice hums through the nose. Double M (mm) makes the same /m/ sound.
Tip
M hums like mmm — press your lips and hum!
Examples
Phonics Rule: Open Syllable O (Long O)
When O is the last letter of a syllable, the syllable is open and the O says its name /oʊ/ — like in 'go' and 'no'.
This is the open-syllable pattern: a syllable that ends in a vowel leaves it 'open', so it says its long name. Here, a lone O at the end of a syllable says /oʊ/ (go, no, so, o-pen). The O also says its long name in the 'old' and 'ost' families (cold, most). The long O sound is also spelled other ways, each its own rule — silent E (home) or vowel teams (oa in boat, ow in snow) — but those are not open syllables.
Tip
Long O says its name — O!
Examples
Phonics Rule: SP Blend
S and P blend together — you hear both sounds! Like in 'spin' and 'sport'.
The blend SP combines /s/ and /p/ spoken quickly together.
Examples
Phonics Rule: Letter H
The letter H makes the /h/ sound, like in 'hat', 'hop', and 'hen'. It is a soft breath of air.
H is a voiceless glottal fricative — just a puff of air with no friction. It always appears before a vowel and is sometimes silent (as in 'hour' or 'honest').
Tip
H is a puff of air — breathe out and say /h/!
Examples
Phonics Rule: R-Controlled ER
When R comes after E, it makes the /ɜːr/ sound, like in 'her' and 'fern'.
ER makes the same sound as IR and UR — they all say /ɜːr/. ER is the most common spelling of this sound, especially at the end of words.
Tip
ER, IR, and UR all sound the same — Bossy R wins again!
Examples
Phonics Rule: Short I
The letter I makes a short sound, like in 'sit' and 'big'.
When the letter I appears in a closed syllable, it usually makes the short I sound /ɪ/. This is one of the trickiest short vowels because it sounds similar to short E.
Tip
I says /ɪ/ like an itch you can't miss.
Examples
Phonics Rule: Hard C
C makes the /k/ sound before A, O, U, or a consonant, like in 'cat' and 'cup'.
The letter C makes the hard /k/ sound when followed by A, O, U, or a consonant. This is the default C sound. Examples: cat, cup, coat, cold, crab, class.
Tip
C says K before A, O, U — cat, cup, coat!
Examples
What is SnapPhonics?
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