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)