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Boogers: What are they?

What are boogers? -Taryn, 9, Seattle, WA

 

What exactly is a booger and is it harmful to eat? -Concerned grandpa

 

Dear curious readers,

When I went to visit my friend Susan Perkins, an instructor of nursing at Washington State University, she shined a tiny light in my nose. Sure enough, she found some crusty little boogies. » More …

Bones: How are they made?

How are bones made? -Oscar, 10

Dear Oscar,

A couple months before you were born, your skeleton was soft and bendy. It was made out of cartilage, the same material that’s in your nose and ears now. But when certain cells in your body called osteoblasts and osteoclasts began to work together, new bone started to form. » More …

Are we getting lazier?

Are we getting lazier? -Aaryan, 9, Timber Ridge

Dear Aaryan,

We cats have a reputation for being lazy. We sleep a lot. But the truth is when I got your question, I didn’t know much about laziness. So, I decided to talk about it with a couple of psychologists here at Washington State University.

My first stop was the Psychology of Physical Activity Lab. That’s where I met up with my friend, Professor Anne E. Cox. » More …

How do leaves make themselves?

How do leaves make themselves? -Francesco R.

Dear Francesco,

Last fall, my friend Lee Kalcsits and I went exploring in the apple orchards of Wenatchee. The apples were ripe and the leaves were changing from green to gold. We plucked a few leaves and took them back to his lab. » More …