IT’S A NANO WORLD

DESIGNED FOR CHILDREN 5-8 YEARS OLD Learning Goal Nanometer-sized things are very small. Students can understand relative sizes of different small things How Scientists can interact with small things. Understand Scientists and engineers have formed the interdisciplinary field of nanotechnology by investigating properties and manipulating matter at the nanoscale. You can be a scientist

SO HOW SMALL IS NANO?

ONE NANOMETRE IS A BILLIONTH OF A METRE Nanometre is a basic unit of measurement. “Nano” derives from the Greek word for midget, very small thing. If we divide a metre by 1 thousand we have a millimetre. One thousandth of a millimetre is a micron. A thousandth part of a micron is a nanometre.

271 meters long. Humpback whales are about 14 meters long. A full-size soccer ball is 70 centimeters in diameter Raindrops are around 0.25 centimeters in diameter. MACROSCALE OBJECTS

The diameter of human hairs ranges from micrometers. About 7 micrometers across E. coli bacteria, found in our intestines, are around 2 micrometers long. Pollen, which fertilizes seed plants, can be about 50 micrometers in diameter. MICROSCALE OBJECTS

The Ebola virus, which causes a bleeding disease, is around 80 nanometers long. DNA molecules, which carry genetic code, are around 2.5 nanometers across. Water molecules are nanometers wide. The largest naturally- occurring atom is uranium, which has an atomic radius of nanometers. NANOSCALE OBJECTS

TRY THIS!

Mark your height on the wall chart. How tall are you in nanometers? Are you super tall? Or is a nanometer super small? MEASURE YOURSELF IN NANOMETERS

THEN TRY THIS! Trace your hand on a worksheet. How many nanometers long is it? Is your hand really big? Or is a nanometer really tiny?

HOW TO MEASURE NANO TECHNOLOGY?

A NANOMETER IS REALLY, REALLY TINY! Nanoscale science focuses on things that are measured in nanometers, anything between nanometers in size. Scientists use special tools and equipment to work with nanometer-sized things. Regular tools like rulers are too big! Computer chip

Examples nanotechnology Red blood cell on a needle

HOW DIFFICULT IS MEASURE NANO OBJECTS? A strand of your hair is around 75,000 nanometers wide. One red blood cell is around 7,000 nanometers wide.

TRY THIS!

TOOLS USED BY SCIENTISTS CAN INTERACT WITH SMALL THINGS So There is already difficult and only reach the best and tell them to do it three times to reach the micron and from there three times to reach the nanometer... At the same time they can understand the lack of accuracy when they try to do it with the scissors... 1_ Named some tools 2_ Activity: You have a strip of 20 cm. In groups of 4 cut for part of 5 cm. After cut a short decimetre... hence one centimetre short of one millimetre...

WHAT IS TO BE SCIENTIST?

"A SCIENTIST IS A PERSON WHO ASKS QUESTIONS AND TRIES DIFFERENT WAYS TO ANSWER THEM."

A SCIENTIST : Learns from her senses Notices details Writes about what happens Makes comparisons and measuring Designs experiments to test predictions Experiments by trial and error Keeps trying over and over Has fun

CAN BE A?

An engineer A doctor Surveyor Marine biologist Astronomer….

YOU CAN BE A SCIENTIST, TOO!