What is Matter? Matter is anything that has mass and takes up space, such as water. The photo shows water first falling and filling and collecting at the bottom of the waterfall. When the collected water increases in volume, the water spills over a rock boundary. Water takes up space. Volume is the amount of […]
How Energy Affects States of Matter
What Happens When A Substance Gains or Loses Energy? For this article, heat will be the energy source and water molecules the substance gaining or losing energy. So, what happens when water molecules gain or lose energy? Energy is needed for motion, the more energy a substance has the faster is its motion. The reverse […]
What is Electronegativity?
Electronegativity is the attraction that an atom has for electrons when combining with another atom. Atoms of different elements may have different electronegativities. Trends in Electronegativity Within the Periodic Table
Water Absorbing Chemical in Disposable Diapers
Why is it dangerous for a child to swim in a disposable diaper? Disposable diapers are able to hold so much water that the weight of the water soaked diaper could cause the child to fall. Thus, disposable diapers should not be worn when a child is in water. Why Diapers Absorb Large Amounts of […]
The Melting and Freezing of Water
How Can Water Freeze and Melt at the Same Temperature? The freezing/melting point of water is OºC. But it is not an instantaneous physical change. Instead, both liquid water and ice can be present at OºC. At this temperature, there is a constant exchange of water molecules between the ice and liquid water as shown […]
How Paper Absorbs Water
How Does Water Move Through Paper? Paper is made of plant fibers. In the process of making paper, the fibers overlap forming a massive network of tunnels in all directions throughout the paper. The chemical molecules making up the fibers are attractive to water water molecules. Adhesion is the name of the force of attraction […]
Important Truth About Dihydrogenmonoxide (DHMO)
Why All Americans Need a Better Understanding of Chemistry I have cut a section from an article about what is being touted as a very dangerous chemical. The name of this life threatening chemical is DHMO, dihydroxymonoxide. What is DHMO? DHMO IS WATER! DHMO or dihydroxymonoxide’s chemical formula has two hydrogens (di-hydrogen) and one […]
Investigating Cornstarch Slime
Adding Information and Challenges to an Exploratory Slime Investigation The kids shown are having fun making slime by mixing together cornstarch and water. Sometimes you want kids to be surprised by the results of an experiment. But, usually, the best results is for kids to know what to do and what to expect. Videos can […]
Melting for Young Learners
Science Investigation that Encourage Kids to Observe, Predict, and Experiment. Let’s Find Out About Melting The two states of matter that kids need to identify in this investigation are: Solid and Liquid. With help from your students, make a list of examples for each, such as: Solids–chocolate candy, ice, candles, etc..Liquids-water, soda, milk, etc… Explain […]
Density: Dynamic Colored Diving Bubbles
The video demonstrating how to make a bottle of dynamic colored diving bubbles. Dynamic: Something that is dynamic is in perpetual change, or motion, or progressing, etc.. The colored water bubbles form when drops of food coloring are added to a bottle containing oil and water. Liquid food coloring is a mixture of a colorant […]
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