In this biology worksheet on cells, 9th graders name who the first person was to use the word cell and describe in what materials this person saw cells. Then they determine what instrument uses light and two or more lenses to view cells.

In this secondary mathematics worksheet, students participate in five activities such as code breaking, color coding, and one and even games.  The nine page worksheet contains eight activities.  Solutions are included. 

In this cryptography and cryptanalysis worksheet, 8th graders read the explanation and example for codes and ciphers, then answer 2 questions and decipher 2 messages.

Students identify animal names and put them into alphabetical order. In this word study instructional activity, students recite the names of animals and alphabetize the names. Students complete a worksheet as a follow-up activity.

In this wetlands worksheet, students follow directions on how to make an online a - z book about the wetlands. Students follow 5 sets of directions.

In this ciphers learning exercise, students cipher the message given to them with a cipher code. Students complete 1 message total.

Students develop a sense of self. They complete several activities involving their name. They disuss what names are useful for safety purposes.

For this homonyms/homophones worksheet, students read 10 illustrated sentences and complete them with the correct word: our, are, there, their, they're.