Question

SCIENCE
• Identify the elements present in earth. Include pictures, if applicable
• Write their colour and physical properties of elements

Answer 1

Answer:

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Answer 2

Explanation:

• The building blocks of matter in the universe is called elements. There are almost ninety-two identified natural elements on the Earth.
• These elements can be seen in the atmosphere, biosphere, and lithosphere.
• These elements make up the living and non-living components of the Earth.
• The major twelve elements of the Earth include oxygen, hydrogen, carbon, nitrogen, sulphur, phosphorous, beryllium, boron, iron, calcium, magnesium, and sodium.
• All the other elements are described in the periodic table.
• The characteristics of one element that help to distinguish it from the other are called is its properties.
• There are mainly two types of properties, which include physical and chemical properties.
• The physical properties include all the changes without changing their physical state and chemical properties include all the changes that explain the reactivity of the elements.
• Some of the physical properties include melting point, boiling point, hardness, luminousness, transparency, physical state.
• Some of the chemical properties include radioactivity, corrosion, heat etc.