The Sediment of Lead (II) Nitrate

The Sediment of Lead (II) Nitrate Today, I'm going to do a common experiment about the sediment of Lead (II) Nitrate. This is a very quick demonstration showing that two solids can react together. White lead nitrate and white potassium iodide react to make yellow lead iodide. I added 5 grams of each chemical into 95ml  of water so I could have 5 % of …

Leaf Fish

Leaf Fish Do you know what camouflage is? Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see (crypsis), or by disguising them as something else (mimesis). Examples include the leopard's spotted coat, the battledress of a modern soldier, and the leaf-mimic katydid's …

Eggs are Strong

Eggs are Strong Next time someone's cooking with eggs around your house, save the eggshells so that you could astound your friends with this incredible stunt. Things you'll need: 4 raw eggs, a small pair of scissors, masking tape, some books. To crack the eggs and get four empty eggshells, gently break open the small end …

The Wood-nettle: a Plant that could Sting like a Bee

The Wood-nettle: a Plant that could Sting like a Bee This will be a short post. If you're interested please continue reading. There are lots of poisonous plants out there. But not as painful as this one: Laportea canadensis, commonly called Canada nettle or wood-nettle, is an annual or perennial herbaceous plant of the nettle family Urticaceae, native …

Walking Fishes

 Walking Fishes Can fishes walk on land? Sounds crazy! But these two fish can. 1.  Mudskippers are amphibious fish, presently included in the subfamily Oxudercinae, within the family Gobiidae (gobies). Recent molecular studies do not support this classification, as oxudercine gobies appear to be paraphyletic relative to amblyopine gobies (Gobiidae: Amblyopinae), thus being included in a …

Ice is Sticky

Ice is Sticky I have an experiment that uses only ice. Things you'll need: 2 ice cubes. Press the flat sides of two ice cubes together. Slowly count to thirty, then let go one of the ice cubes. What happened? When you pushed the two ice cubes together, you created pressure between the two flat sides. …

Cold Chemistry

Cold Chemistry Endothermic chemical reaction use up heat energy, which means the end result is cool to the touch. Use Alka-Seltzer to see this reaction for yourself! Things you'll need: A beaker, a thermometer, an Alka-Seltzer tablet, ice, and water. Fill the beaker with ice. Add enough water to cover the ice fully. Put the thermometer …

Mushroom Spores

Mushroom Spores A mushroom is the fleshy, spore-bearing fruiting body of a fungus, typically produced above ground on soil or on its food source. The standard for the name "mushroom" is the cultivated white button mushroom, Agaricus bisporus; hence the word "mushroom" is most often applied to those fungi (Basidiomycota, Agaricomycetes) that have a stem (stipe), …

Invisible ink

Invisible ink We know that phenolphthalein will turn pink if you drip 2-3 drops into a chemical that is base. That gave me an idea of how to make invisible ink. Things you'll need: phenolphthalein solution, white paper, Q-tip, and ammonia-based glass cleaner (like Windex) Put a few drops of phenolphthalein onto a Q-tip. Use the …

The Sleeping Grass

The Sleeping Grass Mimosa pudica (from Latin: pudica "shy, bashful or shrinking"; also called sensitive plant, sleepy plant, Dormilones, sleeping grass, or shy plant) is a creeping annual or perennial herb of the pea family Fabaceae often grown for its curiosity value: the compound leaves fold inward and droop when touched or shaken, defending themselves from …

Swirling Colors

Swirling Colors Can you make colors move in milk? Then perform this experiment. Things you'll need: whole milk, a shallow dish, food coloring, and liquid dish soap. 1. Pour whole milk into the shallow dish.2. Let the milk warm up to room temperature. 3. Place drops of different food coloring in the milk. DO NOT STIR. …