Skip to main content

New: Give students instant feedback with Practice Mode Learn how

EN
ES
TH

User account menu

Log in

Main navigation

Browse Worksheets
Subjects
- Language arts
  Early Learning
  
  Pre-K
  
  K
  
  Elementry
  
  1st grade
  
  2nd grade
  
  3rd grade
  
  4th grade
  
  5th grade
  
  Middle School
  
  6th grade
  
  7th grade
  
  8th grade
  
  High School
  
  9th grade
  
  10th grade
  
  11th grade
  
  12th grade
- Mathematics
  Early Learning
  
  Pre-K
  
  K
  
  Elementry
  
  1st grade
  
  2nd grade
  
  3rd grade
  
  4th grade
  
  5th grade
  
  Middle School
  
  6th grade
  
  7th grade
  
  8th grade
  
  High school
  
  9th grade
  
  10th grade
  
  11th grade
  
  12th grade
- Science
  Early Learning
  
  Pre-K
  
  K
  
  Elementry
  
  1st grade
  
  2nd grade
  
  3rd grade
  
  4th grade
  
  5th grade
  
  Middle School
  
  6th grade
  
  7th grade
  
  8th grade
  
  High school
  
  9th grade
  
  10th grade
  
  11th grade
  
  12th grade
- Social studies
  Early Learning
  
  Pre-K
  
  K
  
  Elementry
  
  1st grade
  
  2nd grade
  
  3rd grade
  
  4th grade
  
  5th grade
  
  Middle School
  
  6th grade
  
  7th grade
  
  8th grade
  
  High school
  
  9th grade
  
  10th grade
  
  11th grade
  
  12th grade
Grades
Early Learning
- Pre-K
- k
Elementry
- 1st grade
- 2nd grade
- 3rd grade
- 4th grade
- 5th grade
Middle School
High school
CEFR
- A1
- A2
- B1
- B2
- C1
- C2
Games
- Pre-K
- Kindergarten
- 1st grade
- 2nd grade
- 3rd grade
- 4th grade
- 5th grade
- 6th grade

Browse Worksheets
Browse Worksheets
Subjects
Subjects
- Language arts
  Early Learning
  
  Pre-K
  
  K
  
  Elementry
  
  1st grade
  
  2nd grade
  
  3rd grade
  
  4th grade
  
  5th grade
  
  Middle School
  
  6th grade
  
  7th grade
  
  8th grade
  
  High School
  
  9th grade
  
  10th grade
  
  11th grade
  
  12th grade
- Mathematics
  Early Learning
  
  Pre-K
  
  K
  
  Elementry
  
  1st grade
  
  2nd grade
  
  3rd grade
  
  4th grade
  
  5th grade
  
  Middle School
  
  6th grade
  
  7th grade
  
  8th grade
  
  High school
  
  9th grade
  
  10th grade
  
  11th grade
  
  12th grade
- Science
  Early Learning
  
  Pre-K
  
  K
  
  Elementry
  
  1st grade
  
  2nd grade
  
  3rd grade
  
  4th grade
  
  5th grade
  
  Middle School
  
  6th grade
  
  7th grade
  
  8th grade
  
  High school
  
  9th grade
  
  10th grade
  
  11th grade
  
  12th grade
- Social studies
  Early Learning
  
  Pre-K
  
  K
  
  Elementry
  
  1st grade
  
  2nd grade
  
  3rd grade
  
  4th grade
  
  5th grade
  
  Middle School
  
  6th grade
  
  7th grade
  
  8th grade
  
  High school
  
  9th grade
  
  10th grade
  
  11th grade
  
  12th grade
Grades
Grades
- Early Learning
  
  Pre-K
  
  k
- Elementry
  
  1st grade
  
  2nd grade
  
  3rd grade
  
  4th grade
  
  5th grade
- Middle School
  
  6th grade
  
  7th grade
  
  8th grade
- High school
  
  9th grade
  
  10th grade
  
  11th grade
  
  12th grade
CEFR
CEFR
- A1
- A2
- B1
- B2
- C1
- C2
Games
Games
- Pre-K
- Kindergarten
- 1st grade
- 2nd grade
- 3rd grade
- 4th grade
- 5th grade
- 6th grade

Sign up
Sign in

Sign in Sign up

Main navigation

Home Worksheets
Search Worksheets
Community

Breadcrumb

Home
Browse Worksheets
Número Atómico y Másico

Created by

PatricioArza

Ciencias Naturales
Ciencias Naturales
Age 12-11
level: 8
Spanish

Author's Instructions

My Google Classroom Courses

0 classes selected (0 students total)

Quick Access

Select all classes (0 classes)

All Classes

Loading courses...

__COURSE_NAME__
__STUDENT_NAME__ (__STUDENT_EMAIL__)

Número Atómico y Másico

Active — user can report

Worksheet Validation

Check my answers

Emails my answers to my teacher

Full name

Group/level

School subject

Teacher's email or key code

Your answers have been sent to your teacher. Good luck!

We encountered an error submitting your answers. Please try again.

Advertisement | Go Ad Free

Created by

PatricioArza

Ciencias Naturales
Ciencias Naturales
Age 12-11
level: 8
Spanish

Author's Instructions

Worksheets

Worksheets
Make Interactive Worksheets
Browse Worksheets

Wookbooks

Pricing
Teacher Plans
School Plans

Learn

Learn
Getting Started Guide
Video Tutorials
For Teachers
For Students
For Schools

Help

Help
About us
Community
Search Help
Blog

Contact

Contact
Report Copyright Infringement
Contact Us

© LiveWorksheets 2026

Terms of Use Privacy Policy

Report Worksheet

You're reporting anonymously. No account needed — moderators review every report.

Why are you reporting this?

Malicious or harmful contentPhishing, scams, or links that could harm users

Spam or advertisingPromotional or irrelevant content

Inappropriate or offensive contentExplicit, hateful, or age-inappropriate material

OtherSomething else — please describe below

Details

Email (optional)

Only if you'd like us to follow up. We won't display it.

Leave this field blank

Thank you. Your report has been submitted for review.

You have already reported this worksheet. Thank you, our moderators will review it.

You have submitted too many reports recently. Please try again later.