# Color-Craze Igloo

Here's your nightly math! Just 5 quick minutes of number fun for kids and parents at home. Read a cool fun fact, followed by math riddles at different levels so everyone can jump in. Your kids will love you for it.

# Color-Craze Igloo

December 20, 2018

In reeeeeally cold places, people sometimes live in igloos, small homes built of blocks of ice and snow. It’s not very warm inside an igloo, but it’s still warmer than outside! (And an igloo-building secret: The blocks go around in a spiral that layers on top of itself, not in rows that start and end at the same height.) Well, one couple made their own multicolored igloo. They saved up box-shaped milk cartons, filled them with water mixed with food coloring, then froze them into beautiful colored ice blocks. They packed the blocks using snow to hold them, and here’s the result, with a light inside to show off the amazing colors. You can build one too, if you’re willing to drink all that milk!

Wee ones: If the couple used blue, red, green, orange, and yellow blocks, how many colors does the igloo have?

Little kids: If they froze 60 blocks in sets of 10, what numbers would they have said to count them up by 10s?  Bonus: If 10 of those blocks were pink, how many blocks were other colors?

Big kids: If it took 5 ½ hours for the water to freeze through and the first carton was filled at 10:30 am, at what time was the first block ready for building?  Bonus: If the igloo builders saved 50 cartons of milk, and each carton held 8 cups, how many cups of milk did they drink to make this igloo?

The sky’s the limit: If in the first 3 layers each layer has 4 more blocks than the one above it, and they use 600 blocks total, how many blocks are in the top layer?