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WorksheetsLong Test Answer Key
Total questions: 22
Worksheet time: 22mins
Characteristic of science that talks about the correctness of a statement.
Precision
Accuracy
Objectives
Reliability
Which of the following is an example of identifying a problem?
Every day severe cases are increasing daily
Identifying the type of virus present
Conducting clinical trials
People having the COVID-19 vaccine can acquire herd immunity.
A type of hypothesis that states no relationship between variables.
Hypothetical Hypothesis
Falsified Hypothesis
Null Hypothesis
Not true Hypothesis
This is the scattering of light by the particle in a color or suspension.
Tidal Effect
Tydall Effect
Tyndall Effect
Tynndall Effect
Which of the following statements can be considered in preparing dilution?
Add solute and Add solvent
Reduce the solvent and
Reduce solute
Add solute and
Reduce solute
Add solvent and Reduce solute
The term science came from the Greek word, “Scientia” meaning knowledge.
T
F
Pure substance does not have fixed chemical composition.
T
F
A solution is considered to be concentrated if the appearance is dark in color.
T
F
Filtration is the separation technique used in separating oil and water.
T
F
Formulation of medicine is one of the application of substances and mixtures.
T
F
Smallest unit of matter.
Compounds
Atoms
Heterogenous
Homogenous
Elements
Homogenous in nature.
Compounds
Atoms
Heterogenous
Homogenous
Elements
Hydrogen peroxide is an example of __________.
Compounds
Atoms
Heterogenous
Homogenous
Elements
Consist of only one type of atom.
Compounds
Atoms
Heterogenous
Homogenous
Elements
This is only one phase and is uniform in appearance.
Compounds
Atoms
Heterogenous
Homogenous
Elements
Stir-fry Vegetables
HOMOGENOUS
HETEROGENOUS
Vinegar
HOMOGENOUS
HETEROGENOUS
Milk
HOMOGENOUS
HETEROGENOUS
Pizza
HOMOGENOUS
HETEROGENOUS
Coffee
HOMOGENOUS
HETEROGENOUS
What is the percent by mass of 10.0 g of iron (II) sulfate dissolved in 75.0 g of water?
11.76 %
12.76 %
13.76 %
14.76 %
What is the percent by volume of a solution formed by added 15 L of acetone to 48 L of solution?
31.25 %
32.25 %
33.25 %
34.25 %
