Brain

Marcos, NY | Bloodclots
Can you get bloodclots in your brain?

Martino, NS | DNA
What does DNA have to do with animals and people?

Todd, OH | Color Blind
how do people know if they are color blind?

Danica, MT | Memory
I think I wan to do a science fair project on differences in memory but i'm not sure if its a good project or not ne way i think that gender efeects how fast your memory kicks in to different things such as maybe boys have better memory with sports and girls have better memory with Emotional things.

Gabe, IN | Studing the brain
I like sudying astronomy, computers, and studying the brain. I did a study on the effects have on academics. This project took a while and took alot of work, because I had to make quizes with math, problem solving, and creativity tests. Then I gave them to the two 5th grade classes at my school then I hand graded them.Then I had to put all the results in a database and make graphs. One for Boys who play chess and one for the boys that didn't, One for girls who play chess and one for those who didn't. Then Finally I had to write a report which included the history of chess.Now finally , the easiest part, I get to put together a poster. This won me a second place at my school science fair.

Terrah, OH | Science Ideas?
My friends and I are trying to figure out an idea for a science experament. Do you have any good ideas around the area of the brain or somehting that would be a good project to catch the eye of my teacher? Thanks.

Cecily, 11, MH | Science Ideas?
I am doing a science project on the effect of music on the number of correct answers a student gets on a math test. Do have any info tht I can use?

DragonflyTV | Science Ideas? response
Try DragonflyTV's memory experiment on our Web site (go to http://pbskids.org/dragonflytv/investigate3.pl). Get a group of friends together (either the same age, or different ages) and have them each take the memory test at three different times of day (like 8 am, 12 noon, and 6 pm). Have them do the test several different days. Find each person's average score for each time of day. Can you see differences in their scores? Do your friends have better memory in the morning, or the evening?

Some other things you might investigate whether people do better on the test when they or hungry, or after they've eaten, or any other factor you might think is important. Focus on one question about memory and only study that. Then, if you want, you can switch to a different question.

For a more complicated brain experiment, check out Maddy and Martina's experiment on human perception at http://pbskids.org/dragonflytv/explore/humanbehavior.html This one is more work to set up, but if you do it well, you certainly will get your teacher's attention!

Good luck, and let us know how your results come out!

Danny, 14, AZ | Brain cells
Hey i saw your show. very cool. I just wanted to tell you that on your episode with rollercoaster heartbeat, M.R.I, ,and the part with the kids describing the juggler. You guys said that you start out with about 1 billion brain cells and loose some each day, but you forgot to add that you also gain brain cells especially when your a teenager. Just thought you would like to know. great show.

DragonflyTV | Brain cells response
Yes, you're quite right. Many of us were taught that brain cells did not replace themselves, but in 1998 scientists found evidence that the human brain can grow new cells, even into adulthood. It just goes to show you that scientific information keeps changing the more people keep studying the world.

Jenny, 13, MI | Tried Chris's experiment
We thought Chris had a good idea so we did the tickle experiment with 3 boys and 3 girls. We only wanted one variable, so everyone had the same feather used and the same style outfit (t-shirt and jeans). Everyone took their socks off and had their feet tickled with the feather. One boy laughed hard, and the other two just giggled. All three girls laughed really hard (including me- it tickled so much!) so we concluded that girls are more ticklish than boys.

DragonflyTV | Tried Chris's experiment
Nice work! You can submit your investigation details to us by clicking on BE ON DFTV at the left of this page. Maybe you'll be the next scientist featured in Season 2!

Rosie, 13, MA| Who is more observant? What about creativity?
Which gender is more observant? People tell me I'm very creative; how come my writing isn't when I try to write?

Vicki, 9, MA | Left brain-right brain
Did you know if you are a rightie your left side of your brain is smarter then the right side of the brain?We'll it is ture.

Kirsten, 7, PA | Ribcage and spine
The Rib cage is the part of your body that holds a lot of mussles. It gets help from your Spine.

Heather, 14, NY | Trouble with social studies
how come i have so much trouble in social studies?

DragonflyTV | Brain Fact of the Day
Unlike other cells in your body, brain cells don't regenerate. Fortunately, you are born with all the ones you need. But take care of them, you can't grow new ones!

DragonflyTV | Fun memory challenge
Check out your memory skills in the Investigate This part of our site. You'll find a fun game, where you try to memorize 30 pictures that appear on screen for 1 minute. Then you check off as many things as you can remember on a checklist. We'll tell you your score, and you can compare your results to other kids your age, and to kids from other states. Give it a try!

Hannah, 11, MN | Loves science, not history
I love Science, but despise History. I can remember everything I read in Science, but not in History, why is that?

DragonflyTV | Loves science, not history response
There's a nice way to combine history with science that you might find interesting some day. Many people study the history of science. Think about studying that someday, Hannah... it's the best of both worlds!

Chris,12, BC | Tickle yourself
Why can't you tickle your own feet? i think you should foot tickle test 3 boys and 3 girls with a stiff feather when they are blindfolded to see who is most ticklish boys or girls.

DragonflyTV | Tickle yourself response
That's precisely the kind of question that would make a great DragonflyTV investigation. Why don't you try that, and send us your results!

David, 8, UT | Brain
How does the brain work?

DragonflyTV | Brain response
That's certainly a complicated question! For part of the answer, watch DragonflyTV's episode on Human Behavior, especially the Know How riddle. Two young investigators ask that very question!

Natalie, 11, TX | Science Fair Project
A friend and I are doing a Science Fair Project about girls vs. boys in flexiblity. So we need to find some info. thanx.

DragonflyTV | Science Fair Project response
When you finish your project, why don't you send us your results using the Be On DFTV section of the Web site. We'd love to hear what you learned!

Jamie, 7, WY | Math ability
How come people that are left handed write some letters backward? P.S. I'm left handed!

Chelsea, 9, WY | Math ability
How do you find out what your eyes are made from?

Tim, 10, West Virginina | Math ability
Math is my worst subject. Which part of the brain controls math ability?

DragonflyTV | Math ability response
Well, it depends on whether you’re right or left handed. In most right-handed people, the brain’s left side is responsible for math, language, and speech. The right side processes music, complex images, spatial relationships, recognizes and expresses emotion. In left-handed people, the brain pattern is more mixed up.

Renee, 12, New Hampshire | MRI vs. PET scans
What’s the difference between an MRI and a PET Scan?

DragonflyTV | MRI vs. PET scans response
Both are ways to map the function of the brain. A PET scan involves injecting a radioactive substance that is traced. An MRI identifies magnetic fields created by changes in blood flow.