1/8/2024 0 Comments Sand magic iconWhen you pour oil into water, the oil stays separate from the water. Do you know what else is hydrophobic? Oil. If you poured normal sand into the water, it would spread naturally at the bottom of the vase, pretty similarly to how it would act if there wasn’t any water in the vase.īut by adding the Scotchguard, the sand becomes hydrophobic. In fact, normally, sand is hydrophilic (which in science means “water-loving”), which means they love to mix together. This causes the grains of sand to stick together in the water, rather than spreading freely as they’d normally do. (In science, hydrophobic means “water-fearing”). The Scotchguard creates a “hydrophobic” coating on the sand, which basically means the sand wants to stay away from the water. ![]() Then slowly pour the sand into the water and watch what happens! Remember, when you add the sand, the water level will rise, and you don’t want it to overflow. I used disposable, clear plastic cups to make it easier for the kids to see the sand colours.įill a glass vase or container with water, leaving about an inch or two of space at the top of the vase. Once it’s dry, lift each piece of aluminum foil and carefully pour the sand into little cups or bowls. Pretty much exactly what it looked like when it came out of the package. When it’s dry, it should look like regular dry sand. It takes about 1 to 2 hours to dry, depending on how much Scotchguard you added. Once you’re done spraying the sand, let it dry completely. The smell is really strong, so I did most of the spraying in the garage with the garage door open. I ended up using about three quarters of the can of Scotchguard between my 6 sand colours. I sprayed my sand 3 or 4 times, stirring in between. You want the sand as saturated with Scotchguard as you can get it. Spray the sand generously with Scotchguard in a well ventilated area. It also makes it much easier to pour it into a container once it’s dry. Having separate pieces of foil for each colour of sand makes it a lot easier to stir the sand. I didn’t want the two sand colours to mix, so I used two pieces of aluminum foil and made two little separate compartments for the sand. Scotchguard Fabric Protector (This is the exact Scotchguard I used)Ĭover a baking sheet with aluminum foil.Coloured Sand (This is the exact sand I used).Here’s a list of affiliate links to products on Amazon that are either the same or similar to the supplies I used: I love science experiments and I’ve been looking forward to trying this one for awhile now! I was inspired by the experiment done by Teaching Mama. My kids had so much fun with this science experiment! My 8 year old was really curious why the sand stayed together in string-like clumps rather than spreading out. It blows my mind that this magic sand is waterproof! It’s like the sand is in a bubble, and when the bubble “pops” (or maybe “opens up” is a better description?), it has DRY sand in it. The coolest part about this stuff is that if you use a spoon to bring a big clump of sand up out of the water, the sand is DRY. Then you can strain the sand through a coffee filter or paper towel, dry it out, and you can re-use it over and over! ![]() ![]() It’s way easier to clean up! Pour it into a glass container filled with water, and watch the magic. I recommend experimenting with this magic sand in a glass vase or container. He was really mad about it, but I can’t blame my mother in law! He remembers his mom ended up scooping it out of the sink and throwing it in the garbage. Probably because playing with it in the sink is a terrible idea!? That would be so hard to clean up!? And you don’t want to be pouring sand down the drain. He only remembers doing it once or twice though. He said his mom would let him and his brother fill the kitchen sink with water, then they’d pour their magic sand into the sink and play with it. (Ooooo… you can still get it from this affiliate link on Amazon!) I wasn’t lucky enough to have any as a kid, but my husband had some. ![]() Do you remember magic sand? You could buy it in the 1980’s and make all sorts of fun things underwater.
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