The human eye can detect and differentiate over ___ million colors.

• 5

• 10

• 15

• 20

____________ ______________ won the Nobel Prize in 1921.

• Gregor Mendel

• Jane Goodall

• Marie Currie

• Albert Einstein

______________________ taste food by standing on top of it!

• rodents

• butterflies

• hornets

• ants

Sneezing with your eyes open is ____________________.

• difficult

• impossible

• painful

• fast

Adults have 206 bones but children have _____.

• 150

• 200

• 258

• 300

Velcro was invented about ___ years ago.

• 20

• 50

• 40

• 30

Tags

NGSS.MS-PS1-3

The __________ eye blinks an average of 4,200,000 times a year.

• fish

• giraffe

• human

• frog

It takes about ___ hours for food to entirely digest.

• 8

• 12

• 18

• 23

40 - 50 percent of body heat is lost through he head with no hat because of its extensive respiratory system.

• true

• false

Which 3 animals spend about 80% of their lives sleeping?

• armadillos, opossums, and sloths

• alligators, giraffes, and rhinos

• cats, lions, and salmon

• dogs, humans, and wizard cows