What is Matter?

What item listed below weighs about 2 grams?

• A paperback book
• A small paper clip
• A pair of scissors
• A carton of milk

A student weighs a container holding vinegar, a balloon, and a paper towel with baking soda in it, and records the weight. Then the student mixes the baking soda with the vinegar and places the balloon on top. A reaction occurs. What should the student expect when everything is weighed after the reaction?

• Total weight is less
• Total weight is more
• Total weight is the same

What is an example of a chemical change of matter?

• Melting a piece of ice
• Burning a piece of wood
• Water evaporating from a puddle
• Crushing walnuts

Evidence of a chemical reaction includes: 

• a gas formed and released and bubble appear
• salt collecting on the bottom of the pan
• using a magnet to separate substances
• substances floating on top of a liquid

When a substance is able to dissolve, or mix evenly throughout another substance, this is called:

• texture
• solubility
• conductivity
• hardness

Which of the following is an example of a physical change of matter?

• A rusty nail
• Bread rising
• Dissolving salt in water
• Burning paper

When two or more substances react with one another and new substances are formed, it is referred to as:

• Phases of Matter
• Conservation of Matter
• Physical Change of Matter
• Chemical Change of Matter

When two or more substances are mixed together, but do not change into new types of substances, it is referred to as: 

• Phases of Matter
• Conservation of Matter
• Physical Change of Matter
• Chemical Change of Matter

When two or more types of matter interact, new substances with different properties MAY be formed, but the total amount of matter does not change. This is referred to as:

• Phases of Matter
• Conservation of Matter
• Physical Change of Matter
• Chemical Change of Matter

How could you prove that air is matter?

• Weigh a balloon after filling it with water
• Weigh a balloon before and after filling it with air and calculate the difference
• Try to get some air to burn with a lighted match
• Look at air under a hand lens