THE Hands On Museum, Chemistry and Room 306

What’s a PHYSICAL change in a substance?  If the change doesn’t change what the substance IS, it’s a physical change.  In a CHEMICAL change, there is a chemical reaction, a new substance is formed and energy is either given off or absorbed. 

•  What happens when you put baking soda in vinegar?  The baking soda combined with the vinegar creates carbon dioxide, causing the balloon to inflate. 

•  What happens when you mix a variety of elements? 

•  What happens when you put a little water and an alka seltzer tablet into a film container?

Here are some concepts covered in the amazing workshop:

•  Demonstrate the ability to sort objects according to observable attributes such as color, shape, size, sinking and floating.

•  Demonstrate that water as a liquid takes on the shape of various containers.

•  Describe that water as a liquid takes on the shape of various containers.

•  Describe the properties (hard, visible, freezing, ice) of water as a solid (ice, snow, iceberg, sleet, hail).

•  Measure the volume of liquids using common measuring tools (graduated measuring cups, measuring spoons, graduated cylinders, and beakers).

•  Explain how matter can change from one state (liquid, solid, gas) to another by heating and cooling.

•  Compare and contrast the states (solids, liquids, gases) of matter. Describe and illustrate changes in state, in terms of the arrangement and relative motion of the atoms or molecules.

•  Explain how mass is conserved as a substance changes from state to state in a closed system.

Vocabulary words:

Gas, liquid, solid, molecule, acidic, basic, chemical change, element, energy, matter, neutral, period table, pH scale, physical change, states of matter, surface tension, vibration

(From The Hands On Museum website)