Aluminum
Aluminum is a chemical element with the symbol Al and atomic number 13. It is a silvery-white, soft, non-magnetic and ductile metal in the boron group. By mass, aluminum makes up about 8% of the Earth's crust, making it the third most abundant element after oxygen and silicon.
Properties of Aluminum
- Physical Properties:
- Melting Point: 660.3°C
- Boiling Point: 2519°C
- Density: 2.70 g/cm³
- High electrical conductivity
- Chemical Properties:
Uses of Aluminum
Aluminum has a wide range of applications due to its various properties:
- Construction: Used in building materials, window frames, and structural components
- Transportation: Commonly used in the aerospace industry, automotive components, and packaging materials
- Electrical: Widely used in electrical transmission lines, as well as in electronic devices and components
- Consumer Goods: Used in household items such as foil, utensils, and beverage cans
Aluminum in the Environment
Aluminum is not known to be a significant nutrient for plants or animals, and no evidence suggests that it is an essential mineral for humans. However, it is commonly found in the environment due to its abundance in the Earth's crust.
Study Guide Questions
- What is the atomic number of aluminum?
- What are the physical properties of aluminum?
- Describe the chemical properties of aluminum.
- What are the various uses of aluminum?
- Why is aluminum commonly used in the transportation industry?
- Is aluminum an essential mineral for humans? Why or why not?
◂Science Worksheets and Study Guides Third Grade. Relationships among living things
Study Guide
Relationships among living things 
Activity Lesson
Relationships Among Living Things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Vocabulary/Answer key
Relationships among living things Vocabulary/Answer key
Relationships among living things
Activity LessonWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
LIFE SCIENCE
From Molecules to Organisms: Structures and Processes
Create representations to explain the unique and diverse life cycles of organisms other than humans (e.g., flowering plants, frogs, butterflies), including commonalities such as birth, growth, reproduction, and death.
Unity and Diversity
Construct an argument from evidence to explain the likelihood of an organism’s ability to survive when compared to the resources in a certain habitat (e.g., freshwater organisms survive well, less well, or not at all in saltwater; desert organisms survive well, less well, or not at all in woodlands).
Create models that illustrate how organisms and their habitats make up a system in which the parts depend on each other.