7.12 Matter, Motion, Forces, and Energy

· Sort and describe objects and materials by similarities and differences (e.g. size, temperature).

· Observe and describe changes of states of matter (e.g. water as liquid, solid, gas).

· Understand that things can be done to materials to change some of their properties, but not all materials respond the same way to what is done to them.

· Use simple machines.

· Understands that the sun warms the land, air, and water.

· Demonstrate that heating and cooling cause changes in the properties of materials. Many kinds of changes occur faster under hotter conditions.

· Demonstrate that when a new material is made by combining two or more materials, it has properties that are different from the original materials.

· Apply forces to objects (e.g. inertia, gravity, friction, push and pull), and observe the objects in motion.

· Understand that some materials conduct heat much better than others.

· Describe how energy can be stored, released and transferred from one place to another.

· Understand that materials may be composed of parts that are too small to be seen without magnification.

· Show that when a thing is broken into parts, the parts have the same total weight as the original thing.

· Observe and measure characteristic properties of matter (e.g. melting point, density, chemical reactions), and use them to distinguish one substance from another.

· Provide examples of substances reacting chemically to form new substances with different characteristics, and describe and model the phenomenon with reference to elements and compounds.

· Equal volumes of different substances usually have different weights.

· Explain the relationships between pressure, volume,and the amount of gas (e.g. soda bottles, auto tires).

· Observe and demonstrate a qualitative understanding of the relationship between mass, the magnitude of an applied net force, and the resulting change in speed and direction (e.g. simple machines).

· Demonstrate an understanding of potentional energy (e.g. gravitational energy in water behind a dam, mechanical energy in a cocked mousetrap, chemical energy in a flashlight battery or sugar molucule).

· Understand that energy cannot be created or destroyed but only transformed from one form into another.

· Identify and describe common forms of energy (e.g. light, heat, sound, electricity) and their attributes, sources, and transmission characteristics (e.g. radiation, convention, conduction of heat, etc.).

· Investigate the relationship between electricity and magnetism (e.g. in electric motors).

· Observe and record the effects of electric charge; investigate magnetic and non- magnetic materials, and materials that are conductors and non-conductors of electricity.

· Understand that all matter is made up of atoms which are perpetually in motion, with an increase in temperature meaning greater average energy of motion, so that most substances expand when heated.

7.12

7.12.

This may vary from team to team

Water cycle

Scientific exploration

Playtime

Separation of liquids (oil, water)

Dissolve salt, sugar in water

Make rock candy

Lake Champlain

Flight

Simple machines

Electricity and magnetism

Chemical reactions

Motion

Density

7.12