How to Make Liquid Magnets Video Making a liquid magnet results in something that looks straight from a science-fiction movie! Find out how to do this cool chemistry trick in this how-to video from About.com.See Transcript Hi, this is Ben Roy for About.com, and today I'm going to show you how to make a liquid magnet. Materials to Make a Liquid Magnet You will need: A magnet Vegetable OilLaser Jet toner How to Make a Liquid Magnet You want to pour a decent, but small amount of toner in a glass. Take your magnet and put it to the glass. You will see spikes because the liquid is attempting line up with the otherwise invisible magnetic points of the magnetic field that is being created. Thanks for watching! About videos are made available on an "as is" basis, subject to the User Agreement.
La cartographie des courants marins de surface Les forces de Coriolis sont faibles près de l'équateur. Les Alizés entraînent donc l'eau dans le sens du vent, c'est à dire vers l'ouest, où elle tend à s'empiler. De plus, au cours de son déplacement vers l'ouest, l'eau se réchauffe et se dilate. - L'Atlantique Nord Image du Gulf Steam datant du 20 mai 2000 Le courant équatorial nord se prolonge par le courant des Antilles qui converge avec le courant de Floride sortant du golfe du Mexique pour donner le Gulf Stream, puissant courant dont le flux peut atteindre 90.106 m3/s. - L'Atlantique Sud Le courant du Brésil, courant de bord ouest, transporte des eaux chaudes jusqu'à la région de confluence avec le courant des Malouines et le courant circumpolaire qui s'écoule vers l'est sans entrave continentale. - Le Pacifique Le Pacifique est beaucoup plus large que l'océan atlantique mais on y retrouve une circulation océanique voisine du fait d'une distribution des champs de pression atmosphérique donc des vents similaire. - L'océan Indien
How to Make Silly Putty Video Silly putty can be made with common household objects, and is a great chemistry experiment to do with kids. Get two different methods for making homemade silly putty in this video from About.com.See Transcript Hi, I'm James Clinard for About.com. How to Make Silly Putty with Borax For the first method, you'll need: 1/4 cup of glue3/8 cup of water1 tablespoon of borax Make a 50-50 mixture of glue and water using one quarter cup of glue and one quarter cup of water. Next, dissolve the borax in 1/8 cup of water. How to Make Silly Putty with Liquid Starch For the second method, you'll need: 1/4 quarter cup liquid starch 1/2 cup glue Pour the liquid starch into a bowl, and then add in the glue. Whichever method you choose, keep your silly putty in a sealed plastic bag when you're not using it so that it doesn't harden. Making silly putty is a fun activity that also demonstrates some basic principles of chemistry. Thanks for watching.
Le saviez-vous ? L’océan devient corrosif Les océans absorbent plus du quart du CO2 produit par l’homme. Résultat : notre océan s’acidifie. Quelles sont les conséquences pour l’environnement ? “Les activités humaines rejettent du dioxyde de carbone (CO2) dans l’atmosphère : 30 % sont absorbés par la végétation terrestre et 28 % par l’océan, précise Jean-Pierre Gattuso. L’eau ronge les coquilles L’acidification de l’eau de mer touche en premier lieu les mollusques à coquille (huîtres, moules, etc.) et les coraux. Des poissons désorientés “Nous avons également découvert que l’acidification avait un impact direct sur les capacités sensorielles des poissons. Néanmoins, l’acidification n’a pas que des conséquences négatives. Les pêcheurs devront s’adapter Pour les êtres humains, les effets sont uniquement indirects. L’acidité des eaux océaniques s’est accrue de 26 % depuis le début de la révolution industrielle. “Il nous a fallu à peine deux cents ans pour changer la composition chimique de l’océan. Par Sidonie Hadoux
Summer Fun: Microwaved Ivory Soap | Wendolonia When I came across the idea to microwave Ivory soap on The Cyber School Mom Diary’s fantastically comprehensive Supermegatotally Thrilladelic Not Bummer Summer list, I was instantly intrigued. “What happens when you microwave Ivory soap?” I asked. “Try it and see!” I immediately added it to our summer fun list and once Wyatt saw it he was dying to see what happened. Soap! It definitely did not disappoint. We started off with a hunk of plain old Ivory soap . How cool is that? I’d also like to take a moment to note that I’m mortified by how dirty my microwave is in this picture. Anyhoo, the kids were thrilled by this project and have been begging me to do it again since the first exciting result. Have you ever microwaved Ivory soap? If you’re visiting Wendolonia for the first you may be interested in checking out some of my other kid-centric posts:
effet de serre Phénomène de réchauffement des basses couches de l'atmosphère terrestre induit par des gaz (les gaz à effet de serre [GES] : dioxyde de carbone, méthane, vapeur d’eau, chlorofluorocarbures [CFC], oxyde nitreux, etc.) qui les rendent opaques au rayonnement infrarouge émis par la Terre. 1. Un phénomène naturel amplifié par les activités humaines L'essentiel de l'énergie reçue par la Terre provient du Soleil sous forme de lumière visible (longueur d'onde comprise entre 400 et 700 nm). En effet, l'homme, par ses activités, produit des gaz à effet de serre qui amplifient l’effet de serre naturel. 1.1. Les gaz contenus dans l'atmosphère qui piègent le rayonnement infrarouge thermique émis par la surface terrestre sont appelés gaz à effet de serre (GES). Tous ces gaz sont très minoritaires dans l'atmosphère – moins de 1 % pour la vapeur d'eau, 0,0375 % pour le CO2 et des quantités infimes pour les autres –, mais leur effet de serre est important. 1.2. Les émissions de gaz carbonique 1.3. 2.
Easter Craft for Kids {Absorption Art Absorption art is one of our favorite ways to create. It is such a simple way to let kids explore with art, and only a few supplies are needed. The other day I set up an invitation to create Easter eggs with absorption art, and all four of my boys loved creating. Supplies: JZ (5) squirted the liquid watercolors into the containers. Prepare the invitation to create with absorption art, then invite your children to begin making glue designs. J-Bug (3) was content with a small amount of glue. Shake off any excess salt then drop colored water onto the glue and salt mixture. Using pipettes or eye droppers is a great exercise for developing fine motor skills. JZ made it a personal goal to see how much colored water he could suck up into the pipette. Tank and Peanut (20 months) have shown a lot of interest in our art projects lately. I expect a mess when crafting with toddlers, but I do my best to establish good habits. For best results allow the paper to dry. More Easter activities for kids:
Effet de serre L'effet de serre est un phénomène naturel qui permet à la Terre (comme toute autre planète) de retenir la chaleur solaire dans l'atmosphère et de maintenir une température acceptable pour entretenir la vie. Sans cela la température de la Terre serait d'environ -18 °C ! Actuellement l'atmosphère terrestre a une moyenne de 15 °C à cause de l'effet de serre. On appelle aussi « effet de serre » l'augmentation de l'effet de serre de notre époque, qui provoque le réchauffement climatique. [modifier | modifier le wikicode] Les échanges d'énergie entre l'espace, l'atmosphère terrestre, et la surface de la Terre (cliquez l'image pour agrandir) On l'appelle « effet de serre » car le fonctionnement de ce phénomène est comparable à ce qui se passe dans une serre en verre, utilisée pour faciliter la culture de certaines plantes. Quand les rayons du soleil atteignent la terre : C'est cette énergie que le sol va réémettre sous forme de rayons infrarouges. Le phénomène naturel est utile pour la Terre. !
Magical Melting Dough We have been having so much fun creating new and SIMPLE recipes for play. The girls really loved their wonder dough and quicksand play dough. If you missed those be sure to check them out. Today, I added one simple ingredient to our wonder dough recipe to give us a NEW amazing dough. Magical Melting Dough This melting dough is really quite magical. Melting Dough Recipe 1/2 cup of baking soda1/2 cup of corn starchWashable paint (we used tempera)VinegarOptional- googly eyes and other witch accessories to make melting witches (we got our witch accessories at Michaels last year) Mix the baking soda and corn starch together in a bowl. With Halloween so close we decided to use green paint to make melting witch dough Slowly add more paint until you reach the desired consistency. This dough is amazing and SO FUN! They can spray the witches with vinegar to make them FIZZ & bubble They can also make wicked witch eruptions by throwing their witches in vinegar Magic Melting Witch Dough DiggStumbleUpon
All About Your Senses: Experiments to Try Skip Navigation KidsHealth from Nemours for Parents for Kids for Teens What Other Kids Are Reading All About Your Senses: Experiments to Try KidsHealth> Kids> Movies & More> Experiments> All About Your Senses: Experiments to Try Your body does some amazing things, so why not put it to the test? Sign up for our free weekly eNewsletters here Visit the Nemours Web site. Note: All information on KidsHealth® is for educational purposes only. © 1995-2015 The Nemours Foundation. Images provided by The Nemours Foundation, iStock, Getty Images, Corbis, Veer, Science Photo Library, Science Source Images, Shutterstock, and Clipart.com Skip Navigation KidsHealth from Nemours for Parents for Kids for Teens What Other Kids Are Reading All About Your Senses: Experiments to Try KidsHealth> Kids> Movies & More> Experiments> All About Your Senses: Experiments to Try Your body does some amazing things, so why not put it to the test? Sign up for our free weekly eNewsletters here View: Mobile | Desktop
Summer Experiment with Water & oil The last time we experimented with a few different substances and water, comparing how each liquid reacted to the water. This time we kept things a little more simple and explored with just baby oil and frozen colored water. This activity is very inexpensive and a great way to cool things down a bit on a hot day. I filled an ice cube tray with water and added a few drops of food coloring to each ice slot before popping it in the freezer. A few hours later our ice was frozen. The only other thing we needed for this experiment was a pie pan filled with baby oil. All you have to do is add your ice to the pan of baby oil and observe I loved that we could watch and observe the ice slowly melt into the oil, and then bead up right before our eyes. The more the ice melted the more water bubbles formed. Rosie loved making more an more colored water bubbles, and couldn't resist touching them with her hands She played and explored with the ice and oil until all the ice had melted
Easy Science Experiments for Summer | Creekside Learning Who’s ready for some easy science experiments for summer? Summer is a great time to gather a few supplies and set up some cool science experiments for kids. We love seasonal science and summer gives us so many options: outside, inside, in water, in the garden and so much more. {this post contains affiliate links} Experiments About Insects and Critters Raise caterpillars who turn into butterflies.How to raise butterflies to lay eggs and raise caterpillars and butterflies again and again.Learn all about ants with this fun unit study.The Ladybug Science Experiment from The Educators’ Spin On It. Experiments at the Beach Explore tide pools with Mama’s Little Muse. 7 Beach Science Experiments from Left Brain Craft Brain.Search for habitats at the beach and learn about tides from KCEdventures. Plants and gardens Here are 10 things you can grow in a container on your patio or deck. Great Outdoor Experiments for Daytime Make solar oven s’mores from What Do We Do All Day?
Simple Science: Catapults and Trajectory Our science studies have recently taken us into the field of physics, specifically trajectory. Trajectory is the path a free flying object (a projectile) follows through the air. A projectile has two forces working on it. The inertia that launches it into the air and the gravity that brings it back down to earth. So how do you study trajectory? DIY Wooden Catapults I found a great post at Housing a Forest showing how to make simple catapults and I knew we had to give them a try in our science lesson. My husband took the wood we used for our lever experiments and cut it down to make catapults. Hands-On Science Experiment First everyone chose a small stuffed animal to launch. They decided to try again, this time increasing the force, by stepping harder. On the final attempt, the kids jumped or stepped onto their end of the catapult as hard as they could. What we learned Trajectory is only changed by two things; the speed at which you launch the projectile and its angle during launch.