by Dr. Osama M. Khaled
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published
May 12, 2022
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last modified
Jul 13, 2024 10:46 PM
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filed under:
Year 10
A microscope is a laboratory instrument scientists use to examine objects that cannot be seen by naked eyes.
Located in
Biology
/
Cell Structure
by Dr. Osama M. Khaled
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published
May 31, 2022
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last modified
Jul 13, 2024 10:42 PM
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filed under:
Year 10
Quantities have two parts: the number and the unit. The number tells “how many.” It is important to be able to express numbers properly so that the quantities ...
Located in
Chemistry
/
Measurements
by Dr. Osama M. Khaled
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published
Dec 26, 2023
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last modified
Jul 13, 2024 01:09 PM
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filed under:
Year 10
Learn the units that go with various quantities, express units using their abbreviations, and make new units by combining numerical prefixes with units.
Located in
Chemistry
/
Measurements
by Dr. Osama M. Khaled
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published
May 21, 2026
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last modified
May 21, 2026 08:37 PM
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filed under:
Year 10
This quiz focuses on identifying significant figures, applying rounding rules, performing calculations using significant figure conventions, interpreting ...
Located in
Chemistry
/
Measurements
by Dr. Osama M. Khaled
—
published
May 21, 2026
—
last modified
May 21, 2026 10:08 PM
—
filed under:
Year 10
Dimensional analysis, SI units, metric prefixes, conversion factors, scientific notation, temperature conversions, density-related measurements, and important ...
Located in
Chemistry
/
Measurements