BUNDLE AVAILABLE UNTIL DECEMBER 5th

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The Advent of Science

Step into a season of wonder and discovery. Mix shimmering solutions, grow crystal trees, and watch colors, metals, and water come alive in unexpected ways. This December, make curiosity part of your holiday countdown with the Advent Science Bundle.

It includes 12 captivating experiments — one every other day until Christmas Eve — and a special Advent Sheet to capture discoveries, observations, and those unforgettable “aha!” moments.

For $179.90, you’ll receive four MEL Science kits (Chemistry of Materials, Liquiosity, Alchemy, and Artificial Sea), along with a complete chemistry lab set and a VR headset — everything you need for hands-on exploration and immersive learning. Fast delivery within 2–5 days nationwide.

Ask your charter school how to order the bundle!

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🎄 Science of Wonder

Watch metals turn to gold, liquids solidify, and crystals bloom like frozen fireworks. This December, discovery becomes make discovery a family tradition.

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🧪 Festive Transformations

Watch ordinary materials turn extraordinary — colors dance, and water defies its shape. This holiday season, let every experiment light up hearts and minds alike.

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✨Hands-On Holidays

Mix, pour, and watch reactions unfold — then jot down your discoveries on the Advent Sheet to keep the memories alive.

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Here are a few festive DIYs to spark your curiosity while you wait for your Advent bundle…

Ar­ti­fi­cial snow

What You Will Need

- Di­a­pers (they con­tain sodi­um poly­acry­late, a chem­i­cal com­pound that ef­fec­tive­ly ab­sorbs liq­uid – and that’s ex­act­ly what you’ll need for this ex­per­i­ment);
- A glass of wa­ter
- An emp­ty glass or con­tain­er.

Instructions

1. Cut open some di­a­pers and pour the con­tents (sodi­um poly­acry­late gran­ules) into a clean glass.

2. Pour some wa­ter into an­oth­er clean glass (ap­prox­i­mate­ly 100 mL of wa­ter per 2–3 grams of gran­ules).

3. Add the wa­ter to the sodi­um poly­acry­late gran­ules.

4. Watch the sub­stance ab­sorb wa­ter and swell, sig­nif­i­cant­ly in­creas­ing in size and form­ing “snowflakes”!

The ab­sorb­ing sub­stance in di­a­pers is sodi­um poly­acry­late in gran­ule form. It can ab­sorb tremen­dous amounts of liq­uid — hun­dreds of times its own mass! Wa­ter pen­e­trates into the poly­acry­late gran­ules, and oc­cu­pies so much space in­side these gran­ules that they have to swell to ac­com­mo­date it, turn­ing into “snow.” Pre­cise­ly what you need for your Christ­mas dec­o­ra­tions! But be­ware, if you add too much wa­ter, it will turn into a jel­ly­like mass in­stead of “snow.” Just a note: with time, this “snow” may start los­ing shape as the wa­ter grad­u­al­ly evap­o­rates. You can, how­ev­er, re­store its shape – just add a bit more wa­ter! Store this ar­ti­fi­cial snow in an air­tight con­tain­er. This snow isn’t ed­i­ble! Make sure to wash your hands af­ter play­ing with it.

Foam Jack-O’-Lantern

Homemade Christmas tree

What You Will Need

- 3 tsp ta­ble salt
- 3 tsp yel­low prus­si­ate of potash so­lu­tion
- liq­uid soap
- boil­ing wa­ter
- glass
- construction pa­per Christ­mas tree
- Petri dish or saucer

Instructions

1. Pour 3 tsp of ta­ble salt into a glass.

 2. Add 3 tsp 0.3M so­lu­tion of yel­low prus­si­ate of potash.

 3. Add some boil­ing wa­ter.

 4. Stir. Pour the re­sult­ing mix­ture into a Petri dish or saucer and add a few drops of liq­uid soap.

 5. Place a pa­per Christ­mas tree in the cen­ter of the con­tain­er. It’s im­por­tant that the pa­per be of the right con­sis­ten­cy to ab­sorb wa­ter well with­out de­form­ing.

 6. Wait 12 hours. Do not move or jos­tle the Christ­mas tree while the crys­tals are grow­ing. Af­ter 12 hours, the Christ­mas tree will be cov­ered in "snow!”

 The hot so­lu­tion we poured into the Petri dish con­tains a lot of dis­solved sodi­um chlo­ride NaCl. Ac­tu­al­ly, it con­tains a greater quan­ti­ty of salt than room-tem­per­a­ture wa­ter can hold. Con­se­quent­ly, when the sys­tem cools, the sodi­um chlo­ride pre­cip­i­tates out of the so­lu­tion in the form of tiny, fluffy crys­tals. These crys­tals ap­pear on the tree thanks to the cap­il­lary ef­fect. First, the so­lu­tion soaks through prac­ti­cal­ly the en­tire­ty of the pa­per tree. Then, as the wa­ter grad­u­al­ly evap­o­rates from the sur­face of the pa­per, the salt grad­u­al­ly set­tles on it. But how did we ob­tain such fluffy salt crys­tals? Salt crys­tals are usu­al­ly cu­bic, right? This is most­ly due to the ad­di­tion of potas­si­um hex­a­cyano­fer­rate and the way the crys­tals form on the pa­per tree.

Homemade Christmas tree

Frost­work

What You Will Need

- Car­bamide, or urea ((NH2)2CO) – 300 g
- Wa­ter (H2O) – 50 mL
- A glass
- A small piece of glass
- A paint­brush.

Instructions

1. Pour 300 g of car­bamide into a glass.

2. Add 50 mL of hot wa­ter and mix thor­ough­ly. The car­bamide will start dis­solv­ing in the wa­ter, but won’t dis­solve com­plete­ly be­cause there is too much of it)

3. Dip a paint­brush into the so­lu­tion: Take a piece of glass and make sev­er­al strokes with the paint­brush to ap­ply the so­lu­tion to the glass

4. Wait for sev­er­al min­utes — soon you’ll see frost­work pat­terns ap­pear­ing on the glass!

 Where do these “frost­work” pat­terns come from? Car­bamide read­i­ly dis­solves in cold wa­ter, and does so even bet­ter in hot wa­ter. If you de­posit a small quan­ti­ty of hot car­bamide so­lu­tion on a piece of glass, it will form whim­si­cal crys­tals. Once the so­lu­tion starts to cool down on the glass, car­bamide has no choice but to crys­tal­lize as the wa­ter cools too much for all the car­bamide to stay dis­solved. Nee­dle-like crys­tals grow on the wet glass sur­face, cre­at­ing fas­ci­nat­ing, unique pat­terns. They look like real frost­work!

 Make sure to wear pro­tec­tive gloves when con­duct­ing this ex­per­i­ment. The frost­work pat­tern you cre­ate is easy to re­move from the glass – sim­ply rinse it with wa­ter.

Smok­ing Jack-O’-Lantern

Conducting Snowflakes

What You Will Need

- Cal­ci­um ni­trate
- Graphite dust
- Beaker with wa­ter
- Wood­en stick
- Paint­brush
- LEDs
- 9 V bat­tery
-Croc­o­dile clips.

Instructions

1. Pre­pare an aque­ous so­lu­tion of cal­ci­um ni­trate in a beaker and add some graphite dust to cre­ate elec­tri­cal­ly con­duc­tive ink.

2. Use this ink to draw a snowflake.

3. Con­nect a 9 V bat­tery to the snowflake with croc­o­dile clips and put LEDs on the graphite lines to cre­ate a com­plete cir­cuit – the LEDs light up!

 Graphite has a spe­cial struc­ture con­sist­ing of flat lay­ers of car­bon. Elec­tric cur­rent can flow along these lay­ers. Adding an elec­trolyte so­lu­tion to its pow­der makes elec­tri­cal­ly con­duc­tive ink. An elec­trolyte is a sub­stance that dis­so­ci­ates into charged par­ti­cles (ions) in an aque­ous so­lu­tion, and there­fore can also con­duct elec­tric cur­rent. Cal­ci­um ni­trate is a per­fect ex­am­ple. The elec­trolyte so­lu­tion helps elec­trons move from one par­ti­cle of graphite to the next. Thus, a thick mass is ob­tained, which you can use to make real liq­uid "wires" in an elec­tri­cal­ly con­duc­tive pat­tern! 

Conducting Snowflakes

DIY Snow Lava Lamp

What You Will Need

- White paint or gouache
- Water
- Glass
- Baking soda
- Citric acid

Instructions

1. Mix white gouache or paint with water

2. Pour it into a glass, and then gently pour baby oil or vegetable oil over the water layer.

3. To activate the "snowfall," sprinkle in baking soda and citric acid, which will create a bubbling effect that makes the tinted water rise and fall like a snowstorm.

4. Watch the snow globe effect: The citric acid and baking soda will react, creating carbon dioxide bubbles that will rise through the oil, carrying droplets of the colored water with them, creating a "snowstorm" effect.

DIY Snow Lava Lamp

Get your advent science bundle while it's in stock!