IV.1.E.1

Benchmark 1
Classify common objects and substances according to observable attributes/properties.

Benchmark Clarification

Objects can be described by observing their physical properties/ characteristics. Reality is perceived by the five senses. Some of the easiest characteristics to observe are:

* color
* size
* shape
* texture
* smell
* states of matter

Students will:

* Describe common objects using physical characteristics/observable attributes and appropriate descriptive terms (e.g., rough is texture, rigid is flexibility, oval is shape)
* Classify/sort common objects using physical characteristics/observable attributes
* Increase the numbers of identified characteristics at each grade level

See Shadows: objects that let light pass through or objects that block light, (SCI.IV.4.E.4).

See Materials that conduct electricity or objects that do not conduct electricity, (SCI.IV.1.E.2).

Key Concept / MEAP Vocabulary
Texture:

* rough
* smooth

Flexibility:

* rigid
* flexible
* stiff
* strong
* firm

Smell:

* pleasant
* unpleasant

States of matter:

* solid
* liquid
* gas

Magnetic properties:

* attract
* repel
* push
* pull

Size:(K-3)

* larger
* smaller

(3-5)

* length
* width
* height

Color:

* common color words

Shape:

* circle
* square
* triangle
* rectangle
* oval

Weight:

* heavy
* light
* heavier
* lighter

Real World Context
Common objects:

* desks
* coins
* pencils
* buildings
* snowflakes

Common substances:

* solids:
* copper
* plastic
* iron
* Styrofoam
* wood

*
* liquids:
* alcohol
* water
* milk
* juice
* gases:
* air
* water vapor
* helium