Lead

Lead is a chemical element with the symbol Pb and atomic number 82. It is a soft, malleable, and heavy metal that has been used by humans for thousands of years. Lead is found in the Earth's crust and has various industrial, commercial, and household applications.

Physical Properties of Lead:

Symbol: Pb
Atomic Number: 82
State at Room Temperature: Solid
Color: Bluish-white when freshly cut, tarnishes to a dull gray color
Density: 11.34 grams per cubic centimeter
Melting Point: 327.5°C (621.5°F)
Boiling Point: 1749°C (3180°F)

Uses of Lead:

Lead has been used in various applications, including:

Construction of buildings
Manufacturing of batteries
Production of ammunition
Creation of radiation shielding
Historically, lead was also used in paints, plumbing, and gasoline

Health and Environmental Concerns:

While lead has many useful properties, it is also toxic to humans and animals. Exposure to lead can cause serious health issues, especially in children. Additionally, lead pollution can have detrimental effects on the environment. As a result, there are strict regulations regarding the use and disposal of lead-containing products.

Study Guide:

To learn more about lead, consider exploring the following topics:

History of lead usage by ancient civilizations
Chemical properties of lead and its compounds
Health effects of lead exposure
Environmental impact of lead pollution
Modern uses and alternatives to lead in various industries

Understanding the properties and impacts of lead can help us make informed decisions about its use and find safer alternatives for various applications.

◂Science Worksheets and Study Guides Second Grade. What is science?

Vocabulary/Answer key

What is science?

The resources above cover the following skills:

LIFE SCIENCE

Ecosystems: Interactions, Energy, and Dynamics

Obtain information from literature and other media to illustrate that there are many different kinds of living things and that they exist in different places on land and in water (e.g., woodland, tundra, desert, rainforest, ocean, river).

EARTH AND SPACE SCIENCE

Earth’s Systems

Make observations from media to obtain information about Earth’s events that happen over a short period of time (e.g., tornados, volcanic explosions, earthquakes) or over a time period longer than one can observe (e.g., erosion of rocks, melting of glaciers).

Collect and evaluate data to identify water found on Earth and determine whether it is a solid or a liquid (e.g., glaciers as solid forms of water; oceans, lakes, rivers, streams as liquid forms of water).

Lead

Physical Properties of Lead:

Uses of Lead:

Health and Environmental Concerns:

Study Guide:

[Lead] Related Worksheets and Study Guides:

◂Science Worksheets and Study Guides Second Grade. What is science?

The resources above cover the following skills: