Anything that has mass and takes up space.
What is MATTER?
These properties are reversable.
What are PHYSICAL PROPERTIES?
What is the temperature at which a solid turns into a liquid called?
What is melting point?
Name a way that you can speed up dissolving a solute in a solvent.
Mixing it or heating the solvent
These molecules can move freely and will take the shape of any container you put them in.
What is a LIQUID?
A type of change where the size and shape may change but the substance does not.
What is a PHYSICAL CHANGE?
Double Jeopardy: Explain how the water cycle an example of a physical change.
Water changes from a liquid/solid when it precipitates, to a gas when it evaporates, then forms back into a liquid when it condensates. Then the process repeats again with the same substance, WATER!
Double Jeopardy: Explain how a rocket launch is an example of a chemical change.
What is the fuel combines with another chemcial to produce large volumes of a hot gas that propel the rocket into space?
How can you prove that gas has mass?
the balloon experiment, collecting the gasses from an experiment and then removing the collected gasses will cause it to decrease in weight, baking soda and vinegar experiment, etc.
Double Jeopardy: You can separate salt and water using physical properties. What do we call this process of evaporating the water to separate the salt?
What is distillation ?