Radioactive tracer
Hey kiddo! Have you ever played a game of hide and seek where you have to find someone by following the clues they left behind?
Well, scientists have a game very similar to this called radioactive tracing. In this game, the scientists use something called a radioactive tracer, which is a special substance that they put inside the body to find out what is happening inside.
Just like how you follow clues to find your friend during hide and seek, scientists follow the trail of the radioactive tracer to get a better picture of what's happening inside. The tracer is made up of particles that give off a special kind of energy that can be detected by machines called scanners.
These scanners are like x-ray machines that take pictures of the inside of the body. When the scanner takes a picture of the tracer, it shows up as bright spots that help scientists see where the tracer is going and how fast it's moving through the body.
Scientists use radioactive tracers to do all sorts of cool things, like finding out what parts of the brain are working when people think or feel things. They can also use tracers to see how fast the heart is pumping blood or to find out if someone has a disease like cancer.
So you see kiddo, radioactive tracers help scientists see what's happening inside the body, just like clues and a game of hide and seek help you find your friends. Pretty neat, huh?
Well, scientists have a game very similar to this called radioactive tracing. In this game, the scientists use something called a radioactive tracer, which is a special substance that they put inside the body to find out what is happening inside.
Just like how you follow clues to find your friend during hide and seek, scientists follow the trail of the radioactive tracer to get a better picture of what's happening inside. The tracer is made up of particles that give off a special kind of energy that can be detected by machines called scanners.
These scanners are like x-ray machines that take pictures of the inside of the body. When the scanner takes a picture of the tracer, it shows up as bright spots that help scientists see where the tracer is going and how fast it's moving through the body.
Scientists use radioactive tracers to do all sorts of cool things, like finding out what parts of the brain are working when people think or feel things. They can also use tracers to see how fast the heart is pumping blood or to find out if someone has a disease like cancer.
So you see kiddo, radioactive tracers help scientists see what's happening inside the body, just like clues and a game of hide and seek help you find your friends. Pretty neat, huh?