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General Science and Teaching

Halloween Science

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Angie Fairweather Angelika Fairweather 12180 Points

Halloween is a favorite holiday of many science teachers. I would like to create a memorable Halloween Science Day at my school. I would love to hear Halloween ideas from all of you Mad Scientist out there. What are your favorite activities to make Halloween spooktacular? Thank You, Angie

Melanie Biddinger Melanie Biddinger 495 Points

Hi Angelika,

After reading your question, I researched this topic on the internet and came across this website: .

There are several Halloween science experiments that students can complete, such as fizzy ghosts baking soda, orange ooblec, Halloween slime, and a Halloween Lava Lamp and Density experiment. There are also experiments that students can do after Halloween with the candy they got from trick-or-treating.

I also came across this website that has science experiments, such as static electricity dancing ghosts and bats:

I have not personally tested all of these activities from the two websites, so you definitely want to try them out prior to having your students complete them.  This will allow you to determine if you need to make any necessary adjustments to ingredients so that the experiments are successful. 

Many of these activities do not require a lot of ingredients and are quick and easy to complete.  Therefore, they would make great centers that students can participate in on or around Halloween.  However, you may want to have additional helping hands to monitor students’ behavior and ensure their safety.


Patricia Rourke Patricia Rourke 45925 Points

anything with dry ice that you can get from an ice cream store --be careful with it since it can burn - always handle it with tongs A large chunk in a small insulated chest survives for the day. Great questions about change of state/ latet heat/ temperature change/ etc. Let's check for some dry ice demos on the web and in the LC

Patricia Rourke Patricia Rourke 45925 Points

I got this with my first hit via Google Awesome Dry Ice Experiments Oozing, bubbling, fog making, eye-catching science for Halloween. Sounds Exciting!!

Patricia Rourke Patricia Rourke 45925 Points

the same site had some additional 'goulish' things Additional Info Click on the links below for more Halloween Science fun! See the Exploding Pumpkin Halloween Science Video Make a Halloween Science Dry Ice Crystal Bubble Make Slime Bleeding Paper AirZooka Ghost Blaster Gooey Crystals

Patricia Rourke Patricia Rourke 45925 Points

The key words 'inquiry for Halloween' returned these two gems from the Learning Center...attached below --one is a chapter from a book and the other a journal article...sounds like fun also how about mixing various candies together --find the mass of the Halloween element -- have a small baggie of Halloween corn and a small baggie of 'Halloween pumpkins (all candy of course) -- students may mass each bag and determine the average mass for each unit and then predict the molar mass of the mixed bag of corn and pumpkins (of course the elements are radioactive and have to be disposed of properly :}


Katie Gauvin Katie Gauvin 665 Points

I think Halloween is a great chance to spark kid’s interest in Science. It is another great opportunity to get kids excited to come to school and look forward to a variety of educational theme activities. I found this one website that includes a variety of fun activities. Take for example, turning water into blood which can inform kids of ph indicators.


Carolyn Mohr Carolyn Mohr 89373 Points

Hi Angie, We were always in the Chemistry unit during the month of October, so my colleague and I would combine our two classes on Halloween and have a Halloween Chemi"ghoul" Class. We did several demonstrations to engage our students in observation. They had their science journals and pencils on hand and made observations and tried to provide explanations along the way. Some of our favorites were the Flinn "Whoosh" bottle, the Fire-breathing pumpkin, and the "Genie in the Bottle". We would decorate our room the night before and have eerie music playing in the background. A word of caution: I mentioned this in the Science Safety First discussion thread, but since dry ice has been mentioned a couple of times in this thread - teachers need to read (and heed) the MSDS sheets for all chemicals they plan to use in a classroom. A teacher used dry ice in an Illinois high school classroom last month and one of the students is now blind in one eye! The dry ice had been placed in a plastic bottle with a little water then capped. It exploded from the pressure build up and blinded the student. Wishing you a fun and safe Halloween! Carolyn

Patricia Rourke Patricia Rourke 45925 Points

Hi Folks, Check out the Halloween Science sharings in the Elementary forum, too. It is always great to take ideas and adapt them for all grades and content levels and really excites teaching science across the curriculum. The creativity in each of us emerges as we share and compare strategies for different levels. ~patty

Stacy Holland Stacy Holland 6865 Points

Well, I created a Ghosts of Scientist Past project. The students had to pick a scientist to research, create a headstone, and include information from the rubric. I will attach it to this post. The rubric is built into the project. We put up black paper in the hallway with dead trees, and hung up the headstones. The students have been trying to out do each other, and I have received many wonderful projects.


Stacy Holland Stacy Holland 6865 Points

I probably should have mentioned that I teach 6th grade science.

Hi Stacy and other readers of this thread. When I work with my pre service teachers during the fall the end of Oct beginning of Nov I will post a greeting [b]Happy Beginning of Winter [/b] This leads to some puzzlement about why I might consider end of Oct the beginning of winter. If you follow Celtic calendars you will find that our seasons were actually celebrated during mid points or cross quarter days Ground Hogs Day - Feb 2nd Beginning of spring May Day May 1st -Beginning of summer Lammas Day August 2nd - Beginning of fall Halloween ( Old Souls Day) Oct 31st - Early Nov - Beginning of winter This really follow the sensing of when there are changes in the seasons. These are the midpoints between the equinox and soltices. For me I really think of Nov and Dec as the deep, dark times of the year culminating around or about Dec 21st when the longest night happens and then we start to have an increase of hours of daylight as we head to , well , the first day of spring Feb 2nd : ) Look what Phil Pratt says about our seasons'' target="_blank">' target="_blank"> Here are some traditions from the Farmer's Almanac'' target="_blank">' target="_blank"> Okay, you all know A Midsummer Night's Dream play written by William Shakespeare? It takes place in mid June.......... Anyone else think teaching about cross quarter days is a good idea? My best, Arlene JL

Carolyn Mohr Carolyn Mohr 89373 Points

Stacy, I loved your Headstone project. Thanks for sharing. (I hope the students don't put a "died on" date on the scientists still living! Is that one way you can check to see if they did their research? You should write this up as an article in one of the NSTA journals!

Sandy Gady Sandy Gady 43135 Points

What a fun topic. Steve Spangler always provides me with hours of amusement and my students love it as well. Several years ago Steve actually put out a DVD, Halloween Science Secrets. For some of us, it is impossible to purchase enough supplies or district office rules have made it difficult to have peroxide or dry ice in our room, taking away some of our fun. I have used the DVD to show my middle school students during Halloween week. Granted, it’s not as much fun as hands-on. On the video Steve models: Erupting Smoke Bubbles Atomic Slime Dry Ice Mysteries Glow Sticks Crystal Bubble Spooky vibration Dry Ice Halloween Boo Bubbles Smoke rings Exploding pumpkins – my definite favorite If you go onto, many of the videos are available for you to show from the website. If you go to, you will find quite a few of the Halloween Science videos. I used a keyword search of Steve Spangler Halloween science experiments to find these videos. If you do a keyword search of Steve Spangler Science experiments, you get another set of videos that is useful throughout the year. many of the videos are available through this format as well. My all time favorite is The Incredible Can Crusher, . I love to tell a particularly scary story I generally make up as I go that usually ends with the invisible force/ghost/ghoul or goblin mysteriously crushing the can which of course coincides with my turning the can over into the ice water. Always a fan favorite. I appreciate Carolyn’s reminder about the safety aspect of these particular activities. Sometimes in the moment we forget we are not invincible and accidents happen.

Alyce Dalzell Alyce Dalzell 64075 Points

Hello everyone I love the fall time and especially Halloween to use dry ice! I use Boo Bubbles (Steve Spangler) that has been mentioned above. I know someone mentioned that dry ice is not allowed in some classes, I am wondering if a fog machine could be supplemented for some of the activities. Has that been tried? In the pass I have set up different stations for students to work on scientific method skills (quanitative/qualitative observations, inferences, predictions). You can make fake eyeballs (I have made deviled eggs and used food coloring etc...) and other parts of the body, fake blood, set up a crime scene and also do some bone forensics! Keep the great ideas coming, I can't wait to discover more Almost Friday Alyce

Della Faulkner Della Faulkner 1170 Points

With Halloween being on a Monday, I figured I would spend the day doing some spooktacular experiments. I will definitely use some of these ideas. Does anyone have any ideas on how to do a candy volcano?

Deborah Wittenberg Deborah Wittenberg 420 Points

Will ice cream stores easily sell you the dry ice? Is it expensive?

Stacy Holland Stacy Holland 6865 Points

Thanks Carolyn! My students have had a great time creating their headstones. Yes, I did check for correct information. We covered the hallways with black paper, made trees, and a moon that welcomes students. The students are so excited we really didn't have an issue with incomplete projects.

Nicole Dainty Nicole Dainty 4100 Points

I also love your headstones project! Very fun. There was an article in this past month's science scope with a halloween lab. Check out Tried and True: The Halloween Lab. Another one I stumbled upon is Tried and True: Spooky Suspects.

Sandy Gady Sandy Gady 43135 Points

A warning on fog machines, they set off fire alarms really quickly. Our PE department used one in Health one day and the smoke just came pouring out of the door, right along with kids hacking and coughing. I guess they forgot to read about the need for adequate ventilation. Deborah, as for purchasing dry ice, many grocery stores have a freezer with it, you only need to ask. It’s generally not out where the public can get to it and is sold by the pound.

Carolyn Mohr Carolyn Mohr 89373 Points

Oh my, Halloween is almost here! Does anyone wear a costume anymore? Our staff loved to dress up on this one day of the year. Sometimes teams would have themes. We would invite the students to wear a particular color to highlight our team's 'spirit' for the day. Alyce, I saw Steve Spangler demonstrate his 'Crystal Bubble'. Very cool use of the dry ice. (Remember: Drive Science Home Safely!)

Adah Stock Adah Stock 101510 Points

How about fake blood you can eat? These seem to be lots of fun especially on Halloween.

Carolyn Mohr Carolyn Mohr 89373 Points

Happy Halloween, Everyone! Here are some cutesy Halloween Songs for today.

Bailee Baumann Bailee Baumann 555 Points

I have done halloween slime in a preschool classroom at a daycare I worked at. I let the students pour the ingredients in and i let them mix in the non chemical ingredients. We also made edible play dough and had it colored with halloween colors and they got to mix the ingrediece themselves and create the colors they wanted. I love implimenting sensory science things with the younger kiddos! 

Raul Covin Raul Covin 70 Points

Thank you for interesting post

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