Science

Directions: Choose the letter of the correct answer.

What is true about chemical change?
A. A new product is formed
B. The product can be changed to its original form
C. Chemical change as a result of physical change
D. A chemical change is more important than any other process

What happens to the ice cube and butter after heat is applied?
A. Nothing happens to the materials
B. They melt, chemical change happens
C. They melt, physical change happens
D. All the materials dissolved in the removed air

What happens when a piece of paper is burned inside a tin can?
A. There are no changes
B. A new material is formed
C. Both physical and chemical changes happen
D. It became ashes and after a few minutes, it turns to its original form

The process of burning materials with the aid of oxygen is called __________.
A. Combustion
B. Conduction
C. Oxidation
D. Reduction

The presence or absence of oxygen in the materials may result in the __________.
A. Burning of the materials
B. Change in the materials
C. Melting of the materials
D. Materials remain the same

Answer it with the correct answer please
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