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New exercises from Khan Academy 2020-08-04T20:35:04.000000
Atualizado: 1 dia 3 horas atrás

Quiz: Early Humans

qui, 2020-07-23 18:52
Quiz 6.1

Quiz: How Our Ancestors Evolved

qui, 2020-07-23 18:52
Quiz 6.0

Quiz: Life

qui, 2020-07-23 18:51
Quiz 5.3

Quiz: How Do Earth and Life Interact

qui, 2020-07-23 18:51
Quiz 5.2

Quiz: How Did Life Begin and Change

qui, 2020-07-23 18:51
Quiz 5.1

Quiz: What Is Life?

qui, 2020-07-23 18:51
Quiz 5.0

Population ecology

qui, 2020-07-23 16:08
Test your knowledge on population ecology!

Units of length (cm, m)

qui, 2020-07-23 13:01
Practice determining the best form of measurement to use when measuring different objects. Measurements used are centimeters and meters.

Formula of ionic and covalent compounds

qui, 2020-07-23 10:07
Check your understanding of identifying the formula of ionic and covalent compounds in this set of free practice questions.

Natural selection

qua, 2020-07-22 18:12
Test your knowledge of natural selection!

Surface area word problems

qua, 2020-07-22 08:38
Solve word problems that involve surface area of pyramids and prisms.

Volume and surface area word problems

qua, 2020-07-22 08:37
Solve word problems involving volume and surface area involving 3D shapes, including composite figures.

Transcription and RNA processing

ter, 2020-07-21 23:43
Test your knowledge of transcription and RNA processing!


ter, 2020-07-21 23:39
Test your knowledge of replication!

Environmental effects on phenotype

ter, 2020-07-21 23:29
Test your knowledge of environmental effects on phenotype!


ter, 2020-07-21 22:54
Test your knowledge of fitness!

Cellular energy

ter, 2020-07-21 22:40
Test your knowledge of cellular energy!

Electronic transitions in spectroscopy

ter, 2020-07-21 21:57
Check your understanding of electronic transitions and photoionization in this set of free practice questions designed for AP Chemistry students.

Word meanings: fiction 7

ter, 2020-07-21 17:35
Word meanings - fiction - 7th grade

Text structure: history 6

ter, 2020-07-21 17:34
Text structure - history - 6th grade


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