Science may be our favorite subject. 🔬
At least, this All About Water unit anyway. 💦
So many experiments. And we’ve only had one fail so far! 😆
Today we experimented with the density of salt water and fresh water. 🌊
We’re having fun. 💫
I wanted to share this amazing post with you all.
📸 & kind permission from our friends @curiouskidsscience#Repost@curiouskidsscience with @get_repost
If our kids aren't making mistakes at school then there's something wrong. No one gets everything right first time so kids who aren't making mistakes aren't pushing themselves to go a bit further or to take risks and try new things. ⠀⠀⠀⠀⠀⠀⠀⠀⠀
As parents it's important for us to teach kids not to see failures as the end but simply the start of learning something new!⠀⠀⠀⠀⠀⠀⠀⠀⠀
If you are interested in this idea, hop over to the blog on @curiouskidsscience bio and type "fail" into the search bar - there's a whole post for your to ponder 🧐
1 114 hours ago
Have you ever done this experiment with your kiddos? They absolutely LOVED it! We have been working on matter and this experiment focused on gas. We filled the balloons with Pop Rocks and covered different soda bottles! Once we tipped the balloons up and the Pop Rocks into the soda bottles, the balloons began to fill with gas! The kids were FASCINATED! If you haven’t done this, definitely check it out!! There is a great video at @stevespanglerscience@stevespangler
Snow and Water Experiment ❄️ What will happen if we add water to snow? Turn this question into an experiment by testing different temperatures of water. Make a prediction and compare the results.
Looking for more ice and snow experiments? Check these out on the blog:
Unlike other owls, snowy owls (Bubo scandiacus), like Harry Potter's Hedwig, are active during the day. ☀️ They actually start out with black feathers as chicks, which gradually turn white as they grow. ❄️ This one looks extremely unhappy with us. And who can blame it with all the changes we're causing in its native arctic habitat? 📷: Diego Delso/Wikimedia/CC BY-SA 4.0
Please follow me: -@Sciences_funny_
HARD BOILED EGGS are very easy to make, but the science behind them is a bit more complex. There are two membranes inside an eggshell, separating it from the inside of the egg and keeping it safe from microbial invaders. 🥚
Under the membranes is the egg white, or ALBUMEN, made up of PROTEINS and water, and the yolk, also containing fat, all enclosed in a sac. Four alternating layers of thick and thin albumen contain about 40 different proteins! Proteins are made of long chains of amino acids. The proteins in an egg white are globular proteins, which means that the long protein molecule is twisted and folded and curled up into spherical shape. A variety of weak chemical bonds keep the protein curled up tight as it drifts placidly in the water that surrounds it.
The YOLK contains less water but more proteins than the albumen. It also contains some fat and lots of vitamins and minerals. These include iron, phosphorus, calcium, Vitamin A, Vitamin D, riboflavin, and thiamine. The yolk also includes an important EMULSIFIER called lecithin. An emulsifier is something that stabilized an emulsion. A substance that you can mix up but doesn’t completely blend together, such as oil and water, is an emulsion.
The two rope-like structures, called CHALAZAE, hold the yolk in the center of the egg. The more prominent they are, the fresher the egg. 🥚
When you apply heat, you agitate the egg-white proteins, bouncing them around. They slam into the surrounding water molecules; they bash into each other, which breaks the weak bonds that kept the protein curled up. The egg proteins uncurl and bump into other proteins that have also uncurled. New CHEMICAL BONDS form—but rather than binding the protein to itself, these bonds connect one protein to another.
After enough of this bashing and bonding, the solitary egg proteins are solitary no longer. They’ve formed a network of interconnected proteins. The water in which the proteins once floated is captured and held in the protein web. If you leave the eggs at a high temperature too long, too many bonds form and the egg white becomes rubbery. (More in comments, couldn’t fit it all..)
Simulating Gravitational Waves.
Gravitational waves are disturbances in the curvature (fabric) of spacetime, generated by accelerated masses, that propagate as waves outward from their source at the speed of light. They were proposed by Henri Poincaré in 1905 and subsequently predicted in 1916 by Albert Einstein on the basis of his general theory of relativity. Gravitational waves transport energy as gravitational radiation, a form of radiant energy similar to electromagnetic radiation. Newton's law of universal gravitation, part of classical mechanics, does not provide for their existence, since that law is predicated on the assumption that physical interactions propagate instantaneously (at infinite speed)—showing one of the ways the methods of classical physics are unable to explain phenomena associated with relativity.
In 1993, Russell A. Hulse and Joseph H. Taylor, Jr. received the Nobel Prize in Physics for the discovery and observation of the Hulse-Taylor binary pulsar, which offered the first indirect evidence of the existence of gravitational waves.
On 11 February 2016, the LIGO and Virgo Scientific Collaboration announced they had made the first direct observation of gravitational waves. The observation was made five months earlier, on 14 September 2015, using the Advanced LIGO detectors. The gravitational waves originated from a pair of merging black holes. After the initial announcement the LIGO instruments detected two more confirmed, and one potential,gravitational wave events. In August 2017, the two LIGO instruments and the Virgo instrument observed a fourth gravitational wave from merging black holes, and a fifth gravitational wave from a binary neutron star merger. Several other gravitational wave detectors are planned or under construction.
In 2017, the Nobel Prize in Physics was awarded to Rainer Weiss, Kip Thorne and Barry Barish for their role in the direct detection of gravitational waves.