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

Materials: 1. A D size battery 2. Paper clips 3. 3 feet of thin coated copper wire 4. A 3 inch large iron nail

Steps: 1. First, leave 8 inches of wire at one end and wrap most of the rest of the wire on the nail ( do not overlap the wires). 2. Next, leave 8 inches of wire at the other end of the nail. 3. Then, remove an inch of the plastic coating from both ends of the wire and attach one end of the wire to one end of the battery and the other wire to the other end of the battery. 4. Finally, put the nail near the paper clips and it should pick them up!

Lesson: Magnets that cannot be turned off like ones on our refrigerators are called permanent magnets. Since the magnet we made can be turned off and on, it is known as an electromagnet. They run on electricity and are only magnetic when the electricity is flowing through the wires, which has the molecules in the nail attract to the metal paper clips.

Materials: 1. A wooden skewer 2. A clothespin 3. 1 cup of water 4. 2-3 cups of sugar 5. A tall narrow glass

Steps: 1. First, clip the skewer into the clothespin so that it hangs down inside the glass and is 1 in from the bottom of the glass. 2. Next, remove the skewer and clothespin and put the aside. 3. Then, pour the water into a pan and boil it. 4. Next, pour ¼ cup of sugar into the boiling water and stir till it dissolves. 5. Then, keep adding more sugar, each time stirring until it dissolves. 6. Next, remove the heat and allow it to cool for 20 minutes. 7. Then, ask an adult to pour the mixture into the jar to the top. 8. Next, submerge the skewer into the glass so it is hanging straight down the miss without touching the sides. 9. Finally, put it somewhere where it would not be disturbed and wait for the sugar crystals grow over the next 3-7 days.

Lesson: When you mix water and sugar, you created a saturated mixture, which means that the water could only hold the sugar if it was very hot. As the water cools, the sugar turns into crystals on the skewer.

The beautiful rings of Saturn. (NASA: 1, 2)

Source: http://bit.ly/1mhN4jv

Via @did-you-kno

Here is an experiment tutorial if you want to try it www.stevespanglerscience.com/lab/experiments/vanishing-jelly-marbles/

Materials: 1. Half a lemon 2. Water 3. Spoon 4. Bowl 5. Cotton Bud 6. White Paper 7. Lamp Steps: 1. First, squeeze the lemon juice into the bowl and add 6 drops of water. 2. Next, mix the water and lemon juice with the spoon. 3. Then, dip the cotton bud into the bowl and write a message onto the paper. 4. Next, wait for the juice to dry. 5. Finally, heat the paper by holding it close to the light bulb to see the message. Lesson: Lemon juice is a substance that oxides and turns brown when heated. Other substances which work in the same way are orange juice, honey, milk, onion juice, vinegar, and wine. Invisible ink can also be made using chemical reactions or viewing the message with a UV light.

Under our skin.

[Reddit/scienceimages]

There’s an intricate world beneath our feet! [Reddit/interestingasfuck]