Density Experiment. Salt Water Has A Higher Density Than Fresh Water, Causing The Egg To Float In It! 

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The new class of NASA astronauts if finally gender-balanced: 50% are women. What’s more — this class might be the one that gets to fly to Mars. (📷: @glamourmag)

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Not all shadows are black. The Colored Shadows exhibit is a discovery of the colors hidden in white light. Red, green and blue spotlights shine on a wall. The wall is white because red, blue and green light combine to make white light. These colors are often called the additive primary colors. As you walk (or dance) between the lights and the wall, your body casts three different shadows. 

Due to colorless irises, the red hue from the blood vessels is visible causing a ‘red-eye’ effect.

[Reddit/interestingasfuck]

Dinnertime for this jellyfish

The new class of NASA astronauts if finally gender-balanced: 50% are women. What’s more — this class might be the one that gets to fly to Mars. (📷: @glamourmag)

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Materials: 1. Funnel 2. Baking Soda 3. 1/2 Cup of Vinegar 4. Small Balloon 5. Empty Plastic Bottle Steps: 1. First, pour the vinegar into the bottle. 2. Next, use the funnel fill the ballon with half of baking soda. 3. Then, put the neck of the balloon all the way over the neck of the bottle without letting any baking soda into the bottle. 4. Finally, lift the ballon up so that the baking soda falls from the balloon into the bottle and mixes with the vinegar. Lesson: The baking soda, a base, and vinegar, an acid, create an acid base reaction and carbon dioxide. Since gases take a lot of room to spread out, the carbon dioxide fills the bottle and, thus, inflates the balloon.

11 Lessons You Can Teach With Bubble Gum (Yes, Bubble Gum!)

Graphing Create a graph that shows how many students can blow bubbles vs. how many students cannot. Students who know how to blow bubbles can write a how-to to help peers learn the skill of bubble making. Students who have difficulty can write about how they think a bubble is made. Geometry/3-D Solids  Students examine the shape of the gum out of the wrapper (cylinder or rectangular prism, depending on the brand). They compare the shape of the gum pre-chewed to making a bubble (sphere). Measuring Instruct students to measure the length of the gum before and after being chewed. Have kids stretch their chewed gum out as far as they can and lay it on a piece of wax paper (make sure they have clean hands!). How long can they stretch it? Then, have each student blow a bubble and measure the diameter of it. Once they find the diameter, have them figure out the circumference of their bubbles. Mean, Median, Mode and Range List the students’ circumference measurements on the board and have them figure out the mean, median, mode and range using the numbers listed.

Read the rest at http://www.weareteachers.com/blogs/post/2014/09/02/11-reasons-not-to-ban-chewing-gum-from-your-class-(hint-it’s-an-awesome-tool-for-exploration!)

Lightning being frozen in what’s known as a Lichtenberg figure

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