Mixtures | ||
#1 | What is the term used to describe anything that has mass and takes up space? | Matter |
#2 | True or False: A mixture is a combination of substances that keep their properties. | True |
#3 | Give an example of a mixture that can be separated into the original substances | varies |
#4 | Name three examples of mixtures that we've observed in this class. | Varies. Examples: Bean mixture, fruit salad, sand in water |
#5 | The characteristics used to describe matter are ________________ | Properties of matter |
Particles | ||
#1 | True or False: All matter is made up of tiny particles. | True |
#2 | Particles move ________________ when they are cold. | Slower |
#3 | Particles move ________ when energy (heat) is added. | Faster |
#4 | The smallest particles of matter are.... | Atoms! |
#5 | When two or more atoms join together, they are called a... | Molecule |
Solutions | ||
#1 | If all parts of a mixture are evenly distributed, the mixture is a _____________. | Solution |
#2 | How could you separate a solution of salt and water? | Evaporate the water! |
#3 | Can solutions be separated? | Yes! |
#4 | Give one example of a solution we have seen in class | Varies |
#5 | Give two examples of solutions we have seen in class that haven't been named yet. | Varies |
More solutions and mixtures | ||
#1 | Can mixtures be separated? | Yes! |
#2 | How would YOU define a mixture? | |
#3 | How would YOU define a solution? | |
#4 | Many drinks are ___________ with sugar or other particles dissolved inside. | Solutions |
#5 | How could you separate a mixture of sand and salt? | Dissolve the salt in water, then strain/filter the sand out of the liquid |
Chemical and Physical changes | ||
#1 | This type of change is reversible | Physical change |
#2 | This type of change is not reversible | Chemical change |
#3 | Heat or cold is a sign of __________________ | Chemical change |
#4 | List one sign of a chemical change (other than heat or cold) | Gas or bubbles, colour change |
#5 | Dissolving sugar in water is a _____________ change | Physical change |
Final Question | |
If you were given a mixture of SAND, WATER, BBs, and SALT, how could you separate it into the four different things? | BBs: Separate with magnets. SAND: Filter. SALT: Evaporate water |