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WorksheetsIntroduction to chemistry
Total questions: 11
Worksheet time: 6mins
Which scientist is known for the discovery of nitrogen?
Antoine Lavoisier
Joseph Priestley
Dimitri Mendeleev
Daniel Rutherford
Which step of the scientific method includes examining the results of the experiments or tests performed.
Hypothesis
Analysis
Conclusion
A person who studies and gians specialistion in chemistry is called a_________________
Chemist
Biologist
Physicist
Which of these is not a examples of chemical preservatives....
Salt
Sodium Bicarbonate
Benzoic Acid
Talcum Powder is mainly composed of
Magnesium
Silicon
Oxygen
Some examples of synthetic fibres
Nylon
Cotton
Silk
Jute
What are antibiotics?
A chemical compound is used to kill or stop the growth of disease causing bacteria
Chemical preparations that provide immunity for a disease
What did Dalton's atomic theory state
Matter is made of tiny particles known as atoms
Matter is anything that has weight and occupies space
Matter is divided into three states solid, liquid, and gas
The Latin word for knowledge.
Scientia
Knowledgia
eget
The chemical which kills insects
(a)
A Chemical that are used to prevent wastage of food by microbial growth.
Pesticides
Preservatives
