Ask your own question, for FREE!
Health Sciences 18 Online
OpenStudy (anonymous):

I REALLY NEED HELP! Cut a piece of adding-machine tape 4.6 meters long. (If you have only a ruler, remember that one meter equals 100 centimeters or 39.37 inches.) If no adding-machine tape is available, you can cut plain paper into long strips, each about 5 centimeters wide, and attach them to make a continuous piece of paper, approximately 4.6 meters long. Determine an appropriate scale for placing the geologic time scale of 4.6 billion years (4,600 million) on the piece of adding-machine tape. If you need help creating the scale, try the scale calculator.

OpenStudy (anonymous):

Plot each era and period on the adding machine tape using the scale you chose from your calculations. As you indicate each era or period, make notes on the paper about significant events that occurred during that time. Events can be biological or geological in nature.

OpenStudy (aaronq):

if the piece of paper is 4.6 m long and the time period is 4.6 billion years, then \(\dfrac{4.6~meters}{4.6 ~billion ~years}= 1~meter/billion ~years\) 50 cm =500 million years 10 cm = 100 million years 1cm=10 million years 1 mm=1 million years

OpenStudy (anonymous):

okay i should have been more specific i need help on how to make the scale that kind of stuff

OpenStudy (anonymous):

@aaronq

OpenStudy (aaronq):

hm i'm not sure what you mean, like each individual event/era?

OpenStudy (anonymous):

i really dont know my teacher wants me to make a geologic scale going all the way back 4.6 billion years ago

OpenStudy (aaronq):

okay, what i wrote before is that. 4.6 meters (of tape or whatever you're using), is equal; to 4.6 billion years. all those values are for the same scale. It ends up that 1 million years is equal to 1 millimeter.

OpenStudy (anonymous):

oh my god im so lost

OpenStudy (aaronq):

|dw:1387338053288:dw|

OpenStudy (aaronq):

so lets say, something happened 20 million years ago. that's equal to 2 cm|dw:1387338230835:dw|

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!