Open the bottle of soft drink and place the bottle on the ground so it will not tip over. Put your finger over the bottom of the roll and ask your friend to put the lollies into the paper tube. Hold the tube of lollies just above the bottle and remove your finger so all the lollies drop straight in. You need to drop all the lollies into the bottle at the same time.
As soon as you have done that, move away from the bottle as quickly as possible. Hints Diet soft drink works just as well and is less sticky to clean up as it contains no sugar. Neither does Solo as it is light on fizz. Experiment with different types of lollies — Kool Mints were used in this activity.
Try Mentos or other sugar coated lollies. Experiment with the soft drink at room temperature or from the fridge. Soft drink is bubbly because carbon dioxide gas has been forced into the bottle under pressure.
Try stirring soft drink with a spoon — it gets less fizzy. You need non-smooth surfaces to enable the gas to form. Both sand and sugar have the same effect when dropped in soft drink. The place where the bubbles start to form is called the centre of nucleation.
Make your own bath bombs Follow these instructions to make your own bath bombs and learn about science while having fun in the bath! You will need food colouring. Place the citric acid and bicarbonate of soda into a large bowl. Mix the ingredients together well, to form the base mixture.
Scoop out about half a cup of this mixture and put it in into another bowl. This will make about one or two bath bombs depending on the size of the holes in your muffin tray. You could also use old plastic containers or anything that will hold a shape. In the small glass jar, mix together 6 drops of your scented oil, 5 teaspoons of sweet almond oil and about 10 drops of food colouring. Gradually pour the oil mixture into the half cup of the base mixture.
While wearing rubber gloves, quickly mix it all together. The mixture is ready when it stays together in your hands without crumbling too much. You can use the rest of the mixture with other types of scented oil or food colouring to make more bath bombs. Follow these instructions to create an acid-base reaction in your mouth! You will need To do this activity you will need: icing sugar citric acid bicarbonate soda flavoured jelly crystals teaspoon dessert spoon small mixing bowl small snap lock bag.
What to do To make sherbet you will need to: add 1 level teaspoon of citric acid crystals to the bowl add 1 level teaspoon of bicarbonate of soda to the bowl now add 3 heaped dessert spoons of icing sugar add at least 2 level dessert spoons of jelly crystals or more to taste place a small amount, about half a teaspoon on your tongue after tasting you may need to vary the ingredients.
Make sure you add only in small amounts, remember you can always add more but it is very hard to remove some. Rubber egg Follow these instructions to make an egg bounce while learning about chemical reactions.
You will need Equipment needed for this activity includes: hard-boiled egg, with shell on glass of vinegar. What to do To make your eggs bounce you will need to: Put the egg into the vinegar — you should see bubbles start to form on the egg. Leave the egg undisturbed for at least a day. You should see some wonderful scum form. Take the egg out of the vinegar and rinse it with water. The shell will rub off.
Give the egg a poke with your finger and squeeze it gently. Applications Limestone is a sedimentary rock that is largely made of calcium carbonate. This is why over time, buildings and statues are being damaged by acid rain. Add a spoonful of sugar to the water and stir until dissolved. Keep adding sugar until no more will dissolve. Repeat Steps 2 and 3, but with the salt instead of sugar. Kids and parents can explore chemistry with games, videos, hands-on activities, and other fun interactive content.
Articles, activities and games that teach kids ages the basic principles of chemistry. Digital editions in English and Spanish. Guided instructions, lesson plans, classroom activities, video demonstrations, and activity books. Best of Wonder Science, vol. Periodic Table Wall Poster. Careers Launch and grow your career with career services and resources.
Communities Find a chemistry community of interest and connect on a local and global level. Liquid nitrogen boils at a temperature of 77 Kelvin. Oil and water do not mix under normal conditions. Dry ice is the solid form of carbon dioxide CO 2. The element californium is known as the most expensive substance in the world. The densest known stable element on the earth is Osmium. Most objects are made by chemists people who do chemistry. Chemists are constantly working to find new and useful substances.
Chemists make new drugs and materials like paints that we use every day. Many chemicals are harmless, but there are some chemicals that are dangerous. For example, mercury II chloride is very toxic. Chromates can cause cancer. Tin II chloride pollutes water easily.
Hydrochloric acid can cause bad burns. Some chemicals like hydrogen can explode or catch fire. To stay safe, chemists experiment with chemicals in a chemical lab. They use special equipment and clothing to do reactions and keep the chemicals contained. The chemicals used in drugs and in things like bleach have been tested to make sure they are safe if used correctly. Democritus ' atomist philosophy was later adopted by Epicurus — BCE.
In his periodic table, Dmitri Mendeleev predicted the existence of 7 new elements, and placed all 60 elements known at the time in their correct places. Carbon dioxide CO2 , an example of a chemical compound. A ball-and-stick representation of the caffeine molecule C8H10N4O2. An animation of the process of ionic bonding between sodium Na and chlorine Cl to form sodium chloride , or common table salt.
Ionic bonding involves one atom taking valence electrons from another as opposed to sharing, which occurs in covalent bonding. During chemical reactions, bonds between atoms break and form, resulting in different substances with different properties. In a blast furnace, iron oxide, a compound , reacts with carbon monoxide to form iron, one of the chemical elements , and carbon dioxide.
Note how the overall charge of the ionic compound is zero. When hydrogen bromide HBr , pictured, is dissolved in water, it forms the strong acid hydrobromic acid.
Chemistry facts for kids Kids Encyclopedia Facts. All content from Kiddle encyclopedia articles including the article images and facts can be freely used under Attribution-ShareAlike license, unless stated otherwise. Cite this article:.
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