Passage
Grades 5–8
Mass of a Proton
physical science · MS-PS1+3
Free
Search results
“atomic mass” worksheets and activities
6 resultsPassage
Grades 5–8
Do Protons and Electrons Have the Same Mass
physical science · MS-PS1+3
$1.50
Passage
Grades 5–8
Isotopes
physical science · MS-PS1-1
$1.50
Passage
Grades 5–8
Nucleus of the Atom
physical science · MS-PS1-1
$1.50
Passage
Grades 5–8
Mendeleev's Periodic Table
physical science · MS-PS1-1
$1.50
Passage
Grades 5–8
Nuclear Fission
physical science · MS-PS1-1+1
$1.50
Get more from Workybooks
Three ways to use Workybooks — pick what fits.
Start free
$0
No credit card required
- Access to limited resources
- 1 download & 1 Instant Assign by code per day
- 30-day assignment history
Pay as you go
From $1.50
Per resource, one-time
- Download and keep forever
- Online access while account is active
- No subscription, no auto-renew
Open any resource and click Buy.
Best value
Unlock everything
$49.99$24.99 / year
Back-to-school sale • 50% off until Sept 15
Renews at $49.99/year.
All 10,000+ resources, unlimited use
- Download any worksheet, reader or printable
- Play every game and assign to classrooms
- Cancel anytime
Cancel anytime · Trusted by 30,000+ teachers