Module D Unit 2

The amount of time it takes for 50% of the remaining radioactive material to decay into stable material is called:

• radiocarbon dating

• radioactive decay

• half-life

• successive decay time

Tags

NGSS.HS-PS1-8

Index fossils CAN tell us the age of a rock layer.

• True

• False

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Which best describes a fossil that helps determine the relative age of a rock layer?

• trace fossil

• index fossil

• radioactive fossil

• unconformity fossil

Tags

NGSS.MS-ESS1-4

Which statement is true about the fossil record?

• It is a record of all living things

• It shows how our climate has remained the same over time

• It provides evidence for history of life on Earth

• It does not support the theory of evolution

Tags

NGSS.MS-LS4-1

Scientists used __________ atoms to date things that used to be living. (Hint: the most common element in living things)

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NGSS.HS-LS2-5

What evidence from the fossil record supports the observation that life changes over time? Select all that apply.

• More fossils of the same species found in several rock layers

• increased numbers of fossils of different species found in younger rock layers

• several rock layers that do not contain fossils

• fossils of distant relatives of modern species found in ancient rock layers

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NGSS.MS-LS4-1

Biological structures often have shapes (form) that enable organisms to perform particular tasks (function).

How do transitional fossils, such as Tiktaalik, show that form is connected to function in living things?

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NGSS.MS-LS4-2

What evidence do scientists find in the fossil record to show a mass extinction event happened?

• They can find unusual elements like iridium

• Glass pieces that only form in high temperatures

• Large amounts of fossils at that time

• Diversity of the surviving species (shows adaptation)

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NGSS.MS-LS4-1

Explain one inference you can make about fossils from the information in the rock layer images (pg. 34).

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NGSS.MS-LS4-1

NGSS.MS-LS4-2

What is the primary function of chlorophyll in plants?

• A) Absorb water

• B) Absorb sunlight

• C) Absorb nutrients

• D) Absorb carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3