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WorksheetsP5 Introduction to chemistry/ Measurements and Calculations
Total questions: 24
Worksheet time: 27mins
What is the importance of learning chemistry?
Chemistry helps us understand the world around us.
Chemistry is essential for many professions.
Chemistry knowledge is necessary for informed decision-making.
All of the above.
Ethan, Benjamin, and Samuel are studying for their chemistry exam. They are discussing the five traditional areas of study in chemistry. Samuel mentions 'Chemical engineering' as one of them. Is Samuel correct?
Yes, 'Chemical engineering' is one of the traditional areas of study in chemistry.
No, 'Chemical engineering' is not one of the traditional areas of study in chemistry.
Match the following concepts related to the branches of Chemistry
Study of the composition of a substance in terms of qualities and quantities.
Analytical Chem.
Branche in charge of the study of carbon compounds
Organic Chem.
Study of matter and how it is related with the whole processes of the living things
Biochemistry
Study of elements and compounds that do not necessarily are related with carbon composition.
Inorganic chem.
Study of the behavior and changes of matter related with energy and transformations in the nuclei of atoms,
Physical chem
The study of carbon-containing compounds.
Organic Chemistry
Inorganic Chemistry
Physical Chemistry
Biochemistry
(Write the correct definition). It will be check to see if you get 2 points.
Science is __________________________________________________________________________________________________________________________________________________
(Complete the sentence).
At a science fair, Aria, Maya, and Charlotte noticed some of the characteristics of the projects they observed. Since they were scientific projects some of the characteristics the students observed are that the scientific projects
were _______________, _________________, ____________________, _________________, and ________________.
(keep in mind characteristics of science)
(a)
Science or Pseudoscience: A theory is considered valid if it is supported by the majority of experts.
Science
Pseudoscience
Avery, James, and Aria discuss a phenomenon that cannot be observed using the 5 senses, is not testable is not repeatable. Can this phenomenon be considered science? Is this true or false?
True
False
Ethan, Anika, and Aria are on a field trip to a geological site. They find a rock sample and upon analysis, they discover that it contains 78.1% limestone. This data is a
Qualitative observation
Quantitative Observation
Quantitative observations
are characteristics and descriptions
use a number
The SI base unit of temperature is
(a)
A measure of how hot or cold an object is
temperature
liter
kilogram
kelvin scale
What is volume?
the measure of the force of gravity
a measure of the energy of motion of the particles in a substance
the amount of space taken up by an object or substance
the measure of how much mass is contained in a given space
40.1 g
41Kg
100.00
What is 7.555 rounded to two significant figures?
7.6
7.5
70
76
Write the following number in standard form. Type your answer with no spaces and write commas.
4.35×105
(a)
How do you write 8.317 x 106 in standard form?Type your answer with no spaces and write commas.
(a)
Convert 4.2 seconds to hours. Round to three sig figs.
0.00117 h
0.0117 h
0.001666 h
1.16666 h
What will the resulting units be?
cups per day
pints per hour
cups per week
pints per day
