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WorksheetsChemistry Diagnostic Pre-Test
Total questions: 16
Worksheet time: 8mins
It is a proposed explanation for a phenomenon based on scientific knowledge. It can be either accepted or rejected after an experiment is performed.
Hypothesis
Objective
Analysis
Conclusion
What are the 3 basic subatomic particles?
Proton, electrode, neutron
Photon, electrode, neutron
Proton, electron, neutron
Proton, electron, neutrode
The process of evaporation occurs when a substance goes from
Liquid to solid
Solid to gas
Liquid to gas
Solid to liquid
The process of filtration is commonly used to separate
Solids from liquids
Liquids from liquids
Gases from liquids
An endothermic reaction is a chemical reaction that requires energy of any form to take place. Which of the following biological reactions is endothermic?
Digestion
Cellular respiration
Photosynthesis
The temperature at which a substance changes from liquid to gas is called...
Melting point
Boiling point
Flash point
Gas point
How do 2 objects of the same charge interact?
They attract each other
They repel each other
They don't interact
What is the name of the compound we commonly know as "salt"?
Sodium
Sodium chloride
Chloride sodium
It is everything that has mass and volume
Compound
Atom
Matter
Element
A compound is a combination of 2 or more
Atoms
Elements
Electrons
Protons
A decomposition reaction involves breaking down a complex substance into simpler parts. Which of the following biological reactions is a decomposition reaction?
Photosynthesis
Digestion
Respiration
If the mass of an object is 200g and its volume is 100mL. What is its density?
2 g/mL
0.5 mL/g
2 mL/g
0.5 g/mL
What is the name of the positively (+) charged particle in the atom?
Electron
Proton
Neutron
Photon
What is the name of the negatively (-) charged particle in the atom?
Proton
Electron
Neutron
Photon
If an object GAINS electrons, which of the following statements is true?
The overall charge of the object is more positive
The overall charge of the object is more negative
The overall charge of the object remains unchanged
What is Chemistry?
The science of change
The science of life
The science of motion
The science of social interactions
