If you've got a specific classroom you are working / teaching in, a great activity for your students is to make posters to decorate the classroom. You could specify the topic, such as laboratory safety, or offer several topics for your students to choose from, such as the history of chemistry, scientists and their contributions, and again chemistry laboratory safety.
You decide if you want your students to present their posters / give an oral presentation. Someone might say, "This isn't English class, why do we have to do this?" Remind your students that scientists present their findings and need to be public speakers, too!
Here's one talk about how to capture an audience's attention:
During a class or after school session, students can earn extra credit by helping to hang the posters in your classroom. The students can take great pride in their classroom by helping to get it set up -- it can be a great help! I'll mention other classroom ideas in future posts.
Check out my lab book "Chemistry on a Budget" at amazon.com -- it's only $20! It will take a little time to get to you, so order it and enjoy your summer vacation!
Each lab is presented with two possible report formats -- both labs use the same procedure but each has a different conclusion -- one with 10 questions to be answered as a conclusion, the other with a full laboratory report required. This gives the teacher the option of what type of report is desired, and each version is designed to be just two pages. This way the teacher can photocopy just one 2-sided page per student (saves paper).
Have a good week!