|Identify and classify objects by observable properties (characteristics).
- Objects have many observable properties, including color,
texture, size, weight, shape, temperature, and the ability to interact with other
- Objects are described and identified by their properties.
- Different states have different properties.
- Objects float or sink in relation to their mass, shape, and
size (density and bouyancy).
- Properties of objects will determine how they interact with other objects.
- Not all materials change in the same way when interacting with
- Equal volumes of different substances usually have different
- All objects have mass (stuff from which they are made).
- All objects have volume (take up space).
|Classify different rock formations and minerals by similar properties.
- Objects can be separated or sorted into groups of objects or
materials by their properties.
- Objects may be made of one or more materials (paper, cloth,
wood, clay, and metal).
- Objects can be identified by the materials from which they are
|Use approptiate tools to gather information and compare characteristics of properites
||Properties can be observed better with scientific tools (hand lenses for small objects, using standard units or similar objects as measuring devices, and using thermometers or body parts to sense
|Identify the different states of solids
Materials exist in different states- solid, liquid, and gas.
Different states have different properties.
- Solids can be in all sizes and shapes. However, they maintain their shapes as they are moved
- Solids can support denser materials on their surfaces.
- Solids can be separated by screens.
- Some solids change when mixed with water (dissolve) others
form a layer below or above the surface.
- Liquids pour and flow
- When put in a container liquids take the shape of their
- Liquids can have properties of transparent, translucent,
opaque, viscous, free flowing, foamy.
- Gases are matter. (Take up space and have mass)
- Gases will spread throughout its container or dissipate and
flow from an opening in the container.
|Demonstrate that materials change from a solid to liquid to gas by heating and from a gas to liquid to solid by cooling.
Interactions can change some materials properties.
|Differentiate how heat changes different materials.
||Heating or cooling changes materials. (expand, contract, change of state, physical change, and chemical change).
|Match movement of heat to types of energy during energy transfer.
||Heat energy can be transferred by radiation, convection, and conduction.