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WorksheetsSUMMATIVE TEST GRADE 7 1Q.
Total questions: 25
Worksheet time: 13mins
1. What is the third step of scientific method/investigation?
Identify the problem
Create a hypothesis
Testing of Hypothesis
Drawing conclusion
It is the motion due to the collision of rapidly moving particles or the erratic movement of colloid particles.
Conduction
Suspension
Brownian movement
Convection
Which type of substance is sodium chloride (NaCl)?
Acid
Base
Salt
Sugar
Which Sulfur and iron filings are put together? The components can be separated through which process?
Decantation
Filtration
Magnetic separation
Evaporation
It is the maximum amount of a substance that will dissolve in a given amount of solvent at a specified temperature?
Solute
Solubility
Soluble
Solvent
This refers to as the ability of a liquid solute to dissolve in a liquid solvent?
Solubility
Immiscible
Homogeneous Mixture
Miscible
One of the properties of colloids that involves adhesion of any such species onto the surface of the particles.
Absorption
Adsorption
Collision
Suspension
Considered as the systematic body of knowledge that deals with natural world and propose explanations that can be tested by examining evidences?
Chemistry
Physics
Science
Scientific experiments
A type of data gathering that obtained by counting or measuring?
Quantitative Data
Qualitative Data
Quantity Data
Quality Data
This must be stated in a way that makes it testable, possible answer to the question and must be thoroughly tested.
Data analysis
Drawing of Conclusion
Hypothesis
Statement of the problem
Two or more substances that are not chemically combined with each other and can be separated by physical means is ____?
Compound
Elements
Mixture
Solution
A homogeneous mixture of two or more substances is ____?
Suspension
Solvent
Solute
Solution
These are the liquids that can be mixed into each other.
Solubility
Insolubility
Miscibility
Immiscibility
The visible path produced by a beam of light passing through a colloidal mixture is __.
Brownian movement
Adsorption
Absorption
Tyndall effect
A solution that has one relatively large amount of dissolves solute?
Dilute solution
Concentrated solution
Homogeneous solution
Heterogeneous solution
A solution that has one relatively small amount of dissolves solute?
Dilute solution
Concentrated solution
Homogeneous solution
Heterogeneous solution
A solution that dissolves more solute particles is what we called ____ solution.
Dilute solution
Saturated solution
Unsaturated solution
Supersaturated solution
A solution that dissolves no more solute is what we called _____ solution.
Dilute solution
Saturated solution
Unsaturated solution
Supersaturated solution
A solution that dissolves no more solute is what we called _____ solution.
Dilute solution
Saturated solution
Unsaturated solution
Super saturated solution
These are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass.
Atoms
Elements
Group
Periods
Substances that are made up of more than one type of atom is ___.
Elements
Compounds
Molecules
Atom
The process of separating components of a mixture based on different boiling points is ___.
Decantation
Evaporation
Sublimation
Distillation
A kind of separating mixture that distributes the substances between a stationary phase and mobile phase, the colors separated from the sample by placing one end of the paper in a solvent.
Decantation
Sublimation
Paper chromatography
Distillation
The process of separating the particles of colloids from those of crystalloids by means of diffusion through suitable membrane. It is carried out by the kidney which removes the crystalloids, urea, uric acid, hippuric acid and ammonia Compounds out of the kidney.
Purification
Decantation
Dialysis
Kidney transplant
A heterogeneous mixture in which solute-like particles settle out of a solvent-like phase sometime after their introduction to the solution is __.
Suspension
Solvent
Solvent
Solution
