Tag Archives: fun

Biology Word Search – Science Word Searches

Biology Word Search is a word search puzzle using glossary terms associated with middle school biology courses. These biology topics include words dealing with living systems, genetics, the cell, and the environment.

Biology Word SearchThe words can be found running left/right, up/down and diagonally within the array of letters. Word searches can be a fun way to introduce many of the terms a student will encounter in their first class involving the life science of biology.

Click the image to view a full-sized version of the puzzle optimized to fit on a single sheet of paper. For better printing quality, downloading the PDF of the biology word search is best alternative.

If you have trouble finding a particular term, feel free to take a peek at the completed solved word search (or you could download the PDF of the solution).

Biology Word Search Terms

This is a list of the words appearing in the Biology Word Search and quick definitions of each term.

aerobic – process that occurs when oxygen is present
anaphase – Stage of cell division when the chromosomes separate to each side of a cell
bacteria – kingdom of single cell living things with no cell membrane or nucleus
biology – study of life
biome – geographic region with common flora and fauna with a singular climate
cancer – disease caused by the uncontrolled division of abnormal cells in a body
Carbon Cycle – series of chemical processes involving the transfer of oxygen and carbon dioxide
cell – basic functional unit of living organisms separated from the environment by a plasma membrane
chloroplast – organelle found in plants which absorb sunlight to drive photosynthesis
chromosome – a threadlike,  gene-carrying structure found in cell nuclei
climate – weather patterns of a geographic location over a long period of time
clone – an organism genetically identical to another organism or the process of creating genetic replicas of an organism or cell
community – a collection of lifeforms living and interacting together over a geographical area
differentiation – process where offspring cells become separate from their parent cells
diversity – abundance and distribution of different animal and plant communities within a system or geographic area
embryology – branch of biology dealing with the formation and development of living organisms from previous generations
endocytosis – process where cells absorb larger particles by surrounding them with their membrane
eukaryote – an organism with cells containing a true nucleus
evolution – process by which organisms develop and diversify over time
family – classification group above genus and below order
fungi – kingdom of life consisting of eukaryotic organisms which produce their own energy
gametes – cells responsible for the reproduction of life
gene – basic discrete unit of heredity
genus – classification group below family and above species
hereditary – transmission of properties and characteristics from parents to offspring
immunity – ability of an organism to completely fight off a disease
lysosome – organelle of a cell responsible for processing food into waste within the cell
microorganism – life observable only under a microscope
mutation – a change within the DNA that increases genetic diversity
order – classification group below class and above family
organelle – part of a eukaryotic cell suspended in the cell’s cytoplasm which performs a specialized function
organism – individual living thing
phenotype – physical and physiological traits of an organism
photosynthesis – series of chemical processes where light energy is converted into chemical energy occurring in plants, algea, and some prokaryotes
phylum – classification group below kingdom and above class
prokaryote – a type of single-celled organism with no defined cell nucleus.
protein – a polymer of amino acids
survive – an organism that lives to the next generation
virus – a non-cellular mass composed of a nucleic acid and protein coat which reproduces within a host cell

Periodic Table Christmas Tree

Chemistry up your Christmas celebration with this periodic table Christmas tree.2016 Chemis-tree

This Christmas tree contains all 118 elements of the periodic table including the proposed names of elements 113, 115, 117, and 118. Each tile contains the element’s number, symbol, and name.

Wear Your Own Chemis-tree (or enjoy a coffee)

Chemistry Tree Tee

Chemistry Tree Tee

We’ve teamed up with Redbubble to offer this graphic as a print, poster or sticker. If you’d prefer, there are t-shirts and hoodies to wear and coffee cups to drink from. Check out these items along with a variety of other items on our Redbubble product page. Click the Available products button to see other items with this graphic.


Fun Chemistry Mole Puns For Mole Day

Chemistry Mole

This chemistry mole would be better suited as a mascot for Mole Day than the actual mole unit.

Mole day is celebrated every year on October 23 from 6:02 am to 6:02 pm. This holiday honors chemistry’s own measurement unit corresponding to Avogadro’s Number: 6.02 x 1023. You can spend the day learning more about the mole, play a few rounds of “Whack a Mole” or have some guacamole. What better way to spend Mole Day than sharing a few mole puns with our friend Chemistry Mole.

Chemistry Mole Loves Avocados

Just add nachos!

Chemistry Mole's Solution

Back teeth at any rate…

Molecules and Chemistry Mole

How many moles of molecules are in your average Chemistry Mole?

Chemistry Mole and Breakfast

Chemistry Mole knows what’s best for pancakes.

Chemistry Mole Test Taking Preferences

Chemistry Mole feels it is better to be lucky than spend time studying.

Chemistry Mole and Math Class

Even chemistry mole needs to learn mathematics.

Mo Chemistry Mole

Mo Chemistry Mole puns please!

Chemistry Mole and Summer Fruit

Chemistry Mole loves his watermolens. He’s actually a fan of any molens.

Chemistry Mole in the 10th Grade

You could call them brilliant instead…

Chemisty Mole and the Foul Odors

Organic chemistry is full of moleodorous compounds.

King Chemistry Mole

Long Live Chemistry Mole!

Hanging Chemistry Mole

Chemistry Mole’s parties get wild enough to hang from the chandeliers.

Chemistry Mole is Dismole

Poor sad mole 🙁

Chemistry Mole and Marshmallows

Save some for smores!

Chemistry Mole is a Generous Host

Chemistry Mole is a gracious host.

Chemistry Mole and Friends Digging in the Yard

Chemistry Mole says ‘Bottom’s Up!’

Periodic Table With Cats – 2016 Edition

The IUPAC has announced the names of three new elements to the periodic table. You can get a regular color periodic table with these new elements added, but how about a periodic table with cats?

Periodic Table With Cats – 2016 Edition

Cat Periodic Table Rainbow Background 2016I’ve updated my popular cat periodic table to include the names of elements 113, 115, 117 and 118. The proposed names for these elements are nihonium, moscovium, tennessine, and oganesson. Each cat contains an element’s atomic number, element symbol, name and atomic mass. Each fat cat pose represents a different element group.

This colorful cat periodic table is available for use as a desktop wallpaper with dimensions 1920×1080. Click the link for to download.

Periodic Table with Cats – Black and White

If you prefer to choose your own background color, a transparent background version is available. Feel free to download to use on your computer desktop or any other HD device. Just set your desktop background color and use this file as your wallpaper. The cats will appear white on top of your chosen color.Periodic Table with Cats Black and White 2016

Wear the Cat Periodic Table (or Drink From It)

Periodic Table with Cats T-shirt

Periodic table with cats ladies tee.

We’ve teamed up with Redbubble to offer this fun table as prints ranging in size from poster to sticker. You can even wear the table on a hoodie or t-shirt. We’ve even included fun items like coffee cups, travel mugs, bags and throw pillows. Check out our store for this item, or browse around for the other tables we offer. If you don’t see something from this site in the shop, just post a comment and I’ll see about adding it for you.

You may notice the wearable items are showing a blue background. I chose that particular color mainly because I liked it. If you aren’t as fond of blue as me, Redbubble offers other color options.

Element Crossword Puzzle – Countries of the World

This element crossword puzzle is full of names of different countries from around the world. To figure out which countries have been included, you will need to know the element symbols of the elements listed in the clues.

Element Crossword Puzzle - Countries of the WorldEach clue is a list of elements. Piece together their element symbols and spell out the name of the country. Download and print the PDF of this puzzle.

If you don’t remember the symbols for a particular element, an alphabetical list of elements with symbols can be found on our List of Element Symbols page.

If you get stuck, check out the solution here or download a PDF of the solved puzzle.

Element Crossword Puzzle – List of Answers


3. P H I Li P P In Es
4. I Ce La Nd
8. Ar Ge N Ti Na
9. F Ra N Ce
11. Si N Ga Po Re
15. Ba H Ra In
16. Ba H Am As
17. Ne Th Er La Nd S
18. Ne P Al
19. Po La Nd
20. Ho Nd U Ra S


1. U Ni Te Ds Ta Te S O F Am Er I Ca
2. S Pa I N
5. Mo Na Co
6. U K Ra I Ne
10. C H I Na
12. Pa K I S Ta N
13. I Re La Nd
14. F In La Nd

For more fun, check out our list of other words made from element symbols. See if you can add your own.

Slime Recipes

The most popular of the slime recipes is the one using borax and glue.

The most popular of the slime recipes is the one using borax and glue.

Slime is a classic science project. There are lots of different ways to make it, so you’re sure to have ingredients to make it. Here’s a collection of easy slime recipes to try:

Classic White Glue and Borax Slime Recipe

Let’s start with the go-to slime recipe, made using white school glue and borax.

  • borax powder (e.g., 20 Mule Team borax sold as a laundry booster)
  • water
  • 4 ounce (120 ml) non-toxic white glue (e.g., Elmer’s school glue)
  • food coloring (optional)
  1. In one container, stir together 4 ounces (1/2 cup or 120 ml) glue and 1/2 cup water.
  2. Add a few drops of food coloring, if you want colored slime. If you don’t add coloring, your slime will be opaque white.
  3. In a separate container, mix together 1 teaspoon (5 ml) borax powder and 1 cup (240 ml) water.
  4. It’s easy to make the slime. Simply mix the glue solution and the borax solution together!
  5. Work the slime with your hands. You can discard any leftover water.

Goo or Oobleck Slime Recipe

Oobleck is a type of slime that behaves as a viscoelastic or non-Newtonian fluid. (David Mulder)

Oobleck is a type of slime that behaves as a viscoelastic or non-Newtonian fluid. (David Mulder)

Goo or oobleck is a non-sticky opaque slime that is an example of a non-Newtonian fluid. This means it acts differently according to external conditions. This slime flows like a liquid, but if you squeeze it hard or punch it, it feels solid. All versions of this slime are non-toxic and safe even for very young children. There are actually a few different ways to make goo or oobleck. The simplest is to mix together corn starch and water or corn starch and vegetable oil. If you have the materials, using liquid starch instead of powdered corn starch and white glue instead of water or oil makes a nice slime:

  • 1/2 cup white glue
  • 1 cup liquid starch
  • food coloring (optional)

Mix the ingredients together in a bowl or squish them together in a plastic bag.

Glow in the Dark Slime Recipes

Glowing Slime

Glowing Slime

You can turn any slime into glow in the dark slime by adding a phosphorescent powder or by replacing glue in a recipe with glow in the dark glue. Make slime that glows under a black light by adding highlighter ink instead of food coloring.

Note: Most phosphorescent powders are destroyed by contact with water! Your best bet is to use a powder made for mixing into acrylic (water-based) paint or a pre-mixed liquid solution, like a paint or a glue.

Here’s the recipe for the slime I made for this photo:

  • borax powder
  • Elmer’s™ non-toxic blue glue gel (You could use any transparent glue. Avoid white glue because it blocks the “glow.”)
  • Glow-Away™ washable paint (I got this at Michael’s craft store, but any glow-in-the-dark washable paint will work.)
  • water
  1. Mix together 1/3 cup glue and 1 cup water.
  2. Stir or whisk in paint to achieve the desired glow. I used half a tube of glow paint. I had charged the paint under a black light (could use bright sunlight), so I would know how bright it would be in the slime.
  3. In a second bowl, stir borax into half a cup of hot water until it stops dissolving. This gives you a saturated solution without having to measure the borax. If you feel like measuring, add 1-2 teaspoons of borax.
  4. To make the slime, mix together 1/3 cup of the borax solution with 1 cup of the glue/glow mixture.
  5. Charge the slime by exposing it to bright light for a few minutes or a black light for a few seconds. It will now glow in the dark!

Slime Storage and Clean-Up

  • Store any type of slime in a sealed container when you’re not using it.
  • You can keep mold and other nastiness away from the slime by refrigerating it between uses.
  • Clean up slime messes using warm, soapy water.
  • If you used food coloring, remember it may stain fabric and your hands.

Need more slime recipes? My full recipe collection at About.com Chemistry contains many more!

Periodic Table Bingo

Everyone loves Bingo. Everyone will love it more when you involve the Periodic Table.

Periodic Table Bingo CardsThis is a sample pair of Periodic Table Bingo cards. Each card contains 24 elements randomly placed around a portrait of Dmitri Mendeleev.

A set of 30 different Bingo cards is available in one PDF file. In addition to the cards, there is a complete set of periodic table element cells. These cells can be used to draw the names of elements to play the game.

Get 5 in a row, win the game! Get a double win by having fun learning the elements of the periodic table.