Zinc
Zinc is a chemical element with the symbol Zn and atomic number 30. It is a bluish-white, lustrous metal that is commonly used in various industries and has important biological roles in the human body.
Physical Properties of Zinc
- Atomic Number: 30
- Symbol: Zn
- Atomic Weight: 65.38
- Color: Bluish-white
- Melting Point: 419.5°C
- Boiling Point: 907°C
- Density: 7.14 g/cm3
Uses of Zinc
Zinc has a wide range of industrial applications, including:
- Galvanization of steel to protect against corrosion
- Production of brass and other alloys
- In the form of zinc oxide, used in the production of rubber, paint, and other products
- In batteries, particularly in zinc-carbon and alkaline batteries
- In sunscreen and skin care products as a sunscreen agent
Biological Role of Zinc
Zinc is an essential mineral that plays a crucial role in various biological processes in the human body, including:
- Enzyme function and regulation
- Immune system function
- Wound healing
- DNA synthesis and cell division
- Growth and development during childhood, adolescence, and pregnancy
Study Guide Questions
- What is the atomic number of zinc?
- What are the physical properties of zinc?
- What are some industrial uses of zinc?
- What is the biological role of zinc in the human body?
- Why is zinc important for enzyme function?
- How does zinc contribute to wound healing?
◂Science Worksheets and Study Guides Seventh Grade. Introduction to Plants
Study Guide
Introduction to Plants 
Worksheet/Answer key
Introduction to Plants Worksheet/Answer key
Introduction to Plants Worksheet/Answer key
Introduction to Plants Worksheet/Answer key
Introduction to Plants Vocabulary/Answer key
Introduction to Plants Vocabulary/Answer key
Introduction to Plants Vocabulary/Answer key
Introduction to Plants Vocabulary/Answer key
Introduction to Plants Vocabulary/Answer key
Introduction to Plants
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
LIFE SCIENCE
Ecosystems: Interactions, Energy, and Dynamics
Use evidence and scientific reasoning to explain how characteristic animal behaviors (e.g., building nests to protect young from cold, herding to protect young from predators, attracting mates for breeding by producing special sounds and displaying colorful plumage, transferring pollen or seeds to create conditions for seed germination and growth) and specialized plant structures (e.g., flower brightness, nectar, and odor attracting birds that transfer pollen; hard outer shells on seeds providing protection prior to germination) affect the probability of successful reproduction of both animals and plants.