Stars and galaxies: fill in the blanks: fill-in-the-blank worksheet for Grade 8, page 1 preview

Fill-in-the-blank worksheet · Science

Stars and galaxies: fill in the blanks · Grade 8

Read 8 sentences about stars and galaxies and write the missing word in each, choosing from a word bank with a few extra words. Practices reading for meaning and topic vocabulary.

Grade 8 · ages 13 to 14
Hard
10 to 15 minutes
1 page
Free

The answer key is a separate page for grown-ups. Sign in to download it.

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The word bank and sentences

Directions: Read each sentence. Choose the best word from the word bank and write it on the line. Some words are not used.

Word bank: cross out each word as you use it
white dwarf ____ spiral · supernova · Proxima Centauri · 8 minutes planet · star ____ nuclear fusion ____ red giant ____ blue
1 A very massive star can collapse into a black hole after it explodes as a
2 A star's color reveals its temperature: · stars are the hottest and red stars the coolest.
3 The Sun is a · about 150 million kilometers from Earth.
4 After the Sun, the nearest star to Earth is ____, just over four light-years away.
5 Jupiter is the largest · in our solar system.
6 Stars shine because · in their cores turns hydrogen into helium.
7 The Milky Way is a · galaxy with long, curving arms.
8 Sunlight takes about · to reach Earth.

What your child practices

Your child practices reading for meaning and topic vocabulary. The skill is “Sun, Moon, planets and stars”: describe the Sun, the Moon's phases, the planets and stars, day and night, years and Earth's movements.

Grades and ages: Grade 8, ages 13 to 14
Time: About 10 to 15 minutes
Subject: Science
Level: Hard for Grade 8
Answer key: Yes, for grown-ups who sign in
Printing: 1 page, US Letter or A4, low-ink option
Updated: October 15, 2026

How to use it

Try the first question together so the format is clear. Then let your child work through the rest, showing their thinking on the page. It is one of the harder sheets for Grade 8, best once the basics of the skill are secure.

An answer key comes with it as a separate page that grown-ups download after signing in.

Tip for grown-ups: Read each sentence aloud with a hum for the blank, then try each word bank word in it.

Done on paper? A grown-up can record it on the child's page in PlayOwl; downloading alone doesn't count as finished.