In an undisturbed rock formation, the rocks on the bottom are the oldest.

• True

• False

Tags

NGSS.MS-ESS1-4

What term do scientists use to describe what happened at each of the marked points on the graph?

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What type of dating scale is shown on each side of the figure?

Tags

NGSS.MS-ESS1-4

A __________________ fossil is formed when sediments harden around the buried remains of an organism.

Footprints formed in mud that later turned to rock are called ___________________fossils.

Which of the following is NOT a fossil?

• outline of a fern found in a rock

• petrified wood in the desert

• baby mammoth found in a glacier

• old stone tools found in a cave

Tags

NGSS.MS-LS4-1

Petrified wood, fossils that look very like the original trees but that are now actually made up of rock materials, are the result of the process called ____________________.

In the trashcan in Isaac’s room, there were many wrappers from snacks. At the bottom of the trash there was a candy bar wrapper. In the middle, there was a peace of plastic from a slice of cheese. On the top of the rest of the trash is a granola bar wrapper. Assuming the trash has never been mixed up, which snack did Isaac eat the longest ago? Which type of dating did you use to answer?

• the granola bar; absolute-age dating

• the granola bar; relative-age dating

• the candy bar; absolute-age dating

• the candy bar; relative-age dating

When the last individual of a species dies, that species is considered ____________.

• adapted

• rare

• extinct

• evolved

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-4

Change in a population over time is called _________.

• conservation

• evolution

• extinction

• mutation

Tags

NGSS.MS-LS4-4