In this online interactive atomic structure crossword puzzle worksheet, learners use 5 clues to find the appropriate answers to complete the word puzzle.

A lot has happened in the month of October in the past 100 years or so. Kids fill in the blank for 31 events, each of which occurred on a day in October. Each event can be found in a New York Times article from the past 100+ years....

In this models of atoms and isotopes worksheet, students use marshmallow of different colors to represent the protons, neutrons and electrons in an atom. Students make models of the 3 isotopes of hydrogen. They draw a diagram of each and...

In this periodic table worksheet, students write the chemical symbols for the given elements, compare atomic number and mass number, and describe the importance of valence electrons in the organization of the periodic table. This...

In this atoms learning exercise, students circle the term in parentheses that makes the 20 statements correct. The statements review the parts of an atom, isotopes, and basic matter principles.

For this radioactivity worksheet, students write the mass number and atomic number for the missing element in the reactions. Students identify the isotope that is more stable and determine the half-life of the isotope. This worksheet has...

In this online interactive history worksheet, students respond to 10 short answer and essay questions about the accomplishments of J. Robert Oppenheimer. Students may check some of their answers on the interactive worksheet.

For this number facts worksheet, students determine the number associated with each of the twenty-five facts provided.  Students then need to determine how the answers are related to each other.  Answers are provided at the end...

In this Sadako and the Thousand Paper Cranes worksheet, 5th graders read the book Sadako and the Thousand Paper Cranes and complete short answer questions about it. Students complete 9 questions total.

In this chemical reaction worksheet, students label the missing particles as natural decay, induced, fission, or fusion. Students calculate the energy change for the given reactions. This worksheet has 6 fill in the blank and 4 problems...

In this scientific notation worksheet, students solve a total of 10 problems, writing numbers given in problems using scientific notation, then numbers given in scientific notation in standard form.

In thsi scienfic notation learning exercise, students answer 10 questions converting back and forth between scientific notation and standard form.  Students write very big and very small numbers using scientific notation.

In this social studies worksheet, learners look for the words in the puzzle that are related to the theme of the word search. Spelling skills are worked on.