L.1 Introduction to Matter
Anything that has mass and takes up space.
What is Matter?
A characteristic of a substance that can be observed and measured without changing the identity of the substance.
What is a physical property?
Which is a chemical change?
Boiling Water
Baking a cake
Painting a door
What is baking a cake?
Made up of one or more of the same kind of atom chemically combined.
What is an element?
What is a liquid?
The gravitational force on an object. This can change depending on location.
What is Weight?
What is a chemical property?
Sam mixes vinegar and baking soda in a beaker and bubbles form. What kind of change has occurred?
What is a chemical change?
True or False: Elements and Compounds are both pure substances.
What is true?
Name the three pairs of reverse processes.
What is melting/freezing, evaporation/condensation, and sublimation/deposition?
Uses graduated cylinders to measure the volume of a substance.
What is Displacement?
One of these is not a chemical property: Reactivity, Flammability, Malleability
As the sun shines on a puddle of water, the water slowly disappears. What kind of change is this?
What is a physical change?
Name the three types of mixtures and give an example of each.
What is a solution, a suspension, and a colloid? What is lemonade, a snow globe, and jell-o?
Describe the motion of particles changing from a gas to a solid.
What is the particles lose freedom, lose energy, and become fixed in a uniform position?
The formula for density.
What is mass divided by volume?
True or False: Observing the physical properties of a substance will change the identity of that substance.
What is false?
States that mass is never created or destroyed, but only transformed into different substances.
What is the law of conservation of mass?
What is a solution?
What happens to the temperature as a substance is changing from one state to another?
What is it remains constant until the whole substance has changed states.
Andrea places a coin in a graduated cylinder. What other tool does she need to calculate the density of the coin?
What is a balance? (to measure mass)
Name three physical properties of aluminum foil.
What is malleable, silver, solid, smooth, shiny, (etc.)?
Name two signs that a chemical change has occurred.
What is production of a gas or odor, formation of a precipitate, a change in color, or a change in energy?
Name the difference between a pure substance and a mixture.
What is: a pure substance is chemically combined and cannot be separated physically, unlike a mixture which can be physically separated.
This process turns a solid directly into a gas. Name an example of this process.
What is sublimation? Dry ice converts to carbon dioxide gas.