Classification of Materials
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2nd Grade Science › Classification of Materials
Observable properties classify all of the items listed. What observable property are all of the items in "Category 2" sorted by?
Shape
Hardness
Color
Texture
Explanation
Observable properties are characteristics of an object or material that can be gathered using the five senses. When looking through each category, there is a common property that groups the items. In "Category 2," all of the items are round, so they are classified by shape.
Observable properties classify all of the items listed. What observable property are all of the items in "Category 2" sorted by?
Shape
Hardness
Color
Texture
Explanation
Observable properties are characteristics of an object or material that can be gathered using the five senses. When looking through each category, there is a common property that groups the items. In "Category 2," all of the items are round, so they are classified by shape.
Bella put a dirty sock in a box. She described it to her sister using observable properties, and her sister had to guess what it is. Which set of features matches the sock?
Round, red, hard, and smooth
Irregular shape, soft, white, and smelly
Square, hard, green, and bouncy
Irregular shape, hard, rough, and smelled fruity
Explanation
An observable property is something that describes an item or material and is gathered using the five senses. A dirty sock is an irregular shape, soft, white, and smelly. Someone could touch, smell, and see a dirty sock and find all of these properties are true.
Bella put a dirty sock in a box. She described it to her sister using observable properties, and her sister had to guess what it is. Which set of features matches the sock?
Round, red, hard, and smooth
Irregular shape, soft, white, and smelly
Square, hard, green, and bouncy
Irregular shape, hard, rough, and smelled fruity
Explanation
An observable property is something that describes an item or material and is gathered using the five senses. A dirty sock is an irregular shape, soft, white, and smelly. Someone could touch, smell, and see a dirty sock and find all of these properties are true.
Observable properties classify all of the items listed. Which category would Rishi put a green gummy bear in based on its properties?
Category 1
Category 2
Category 3
None of the categories
Explanation
A green gummy bear would not fit into any of the categories based on its observable physical characteristics. "Category 1" is all rectangular or square objects, "Category 2" are round items, and "Category 3" is all brown items. A green gummy bear would need to be placed in a new category.
Jorah has a game to play with his friends. He will describe a material or object by its observable properties, and they have to guess what he is thinking of.
"The object I am thinking of is rectangular, bumpy, hard, and green in color." Which object is he thinking about?
Explanation
The object that Jorah is most likely describing is the building block. It is green, bumpy on top, hard, and a rectangular shape. These observable properties can be used to describe the item in detail. Observable properties are determined with the five senses.
Observable properties classify all of the items listed. Which category would Rishi put a green gummy bear in based on its properties?
Category 1
Category 2
Category 3
None of the categories
Explanation
A green gummy bear would not fit into any of the categories based on its observable physical characteristics. "Category 1" is all rectangular or square objects, "Category 2" are round items, and "Category 3" is all brown items. A green gummy bear would need to be placed in a new category.
Jorah has a game to play with his friends. He will describe a material or object by its observable properties, and they have to guess what he is thinking of.
"The object I am thinking of is rectangular, bumpy, hard, and green in color." Which object is he thinking about?
Explanation
The object that Jorah is most likely describing is the building block. It is green, bumpy on top, hard, and a rectangular shape. These observable properties can be used to describe the item in detail. Observable properties are determined with the five senses.
Daria got a new kitten. She was on the phone with her grandmother and wanted to describe it using his observable properties. Which list best matches the description of the kitten?
Tan, brown, soft, not bouncy, squishy, and warm
Tan, brown, hard, bouncy, and cold
Tan, brown, soft, bouncy, squishy, and cold
Brown, soft, orange, warm, not bouncy, and magnetic
Explanation
Daria can describe her kitten using observable properties. Observable properties are characteristics of an item, person, material, or even animal that are collected using the five senses. This kitten is tan, brown, soft, not bouncy, squishy, and warm. Using the senses of touch and sight, these features can be determined.
Daria got a new kitten. She was on the phone with her grandmother and wanted to describe it using his observable properties. Which list best matches the description of the kitten?
Tan, brown, soft, not bouncy, squishy, and warm
Tan, brown, hard, bouncy, and cold
Tan, brown, soft, bouncy, squishy, and cold
Brown, soft, orange, warm, not bouncy, and magnetic
Explanation
Daria can describe her kitten using observable properties. Observable properties are characteristics of an item, person, material, or even animal that are collected using the five senses. This kitten is tan, brown, soft, not bouncy, squishy, and warm. Using the senses of touch and sight, these features can be determined.