science
Field Work Friday – How Old Is That Tree?
After that the group returned to the pavilion, where Mike gave the children their own tree “cooky” so they could count the rings themselves. It’s definitely harder to do as the wood ages!
Mike outdid himself, as usual. His lesson meshed perfectly with our studies and provided hands-on experience that we couldn’t give our children. They were fascinated with the tools of his trade and excited to share about the new things that they’ve learned. Thanks, Mike!
Field Work Friday – Scavenger Hunts at Duke Gardens
This week we ventured to the Sarah P. Duke Gardens, part of Duke University. I planned several scavenger hunt sheets so that our children, who usually range in age from 1 to 8, could all participate in some way.
Because the temperature was supposed to get into the mid-90s, we met at 9 AM. After arranging our meeting places and picking up maps, we headed out into the 50+ acre garden.
While I was excited about searching out different items with My Little Man and then discussing them with the group as a whole over a picnic lunch, I was very excited to introduce my friend Noelle to our group.
Noelle has been honing her photography skills for years and agreed to take pictures of our children while we hunted throughout the garden. Because this particular garden is so diverse and has so many fountains and special features, it makes the perfect place for special pictures.
(If you would live in our neck of the woods and would like fabulous pictures of your children or next event, you can check out Noelle’s blog. Contact her for more information!)
We’ll have Noelle’s pictures back soon, but you can see some of the topics for the various scavenger hunts. We didn’t do all of these, but we found pieces of them all ….
For those of us doing the number hunt, we found a plant with ONE main base.
For those people doing the color search, we found an animal with RED wings.
We found a rock that could be used like a chair, just as Jessie did in The Boxcar Children, for those people doing the literature hunt.
We found SPHERICAL flowers, a shape needed on the shape hunt.
Of course, all that hunting made us very hot and thirsty ..
It was tempting to just step right off those stones …
but we stuck to our water bottles, instead.
If you would like to take these scavenger hunts outside yourself, you can find copies of them here.
Have you done an old-fashioned scavenger hunt lately? What interesting things can you find in your backyard or local park?
Field Work Friday – Dental Hygiene
This week we were visited by Pat, a dental hygienist for a local pediatric dentist. That might not sound too exciting, but Pat brought along Ally the Alligator and shared lots of good tips for caring for your teeth.
Pat talked to us about how important it was to brush our teeth each morning and before bedtime, and that taking care of our gums is crucial. She told us that dentists recommend that children spend 6 minutes each evening on dental hygiene, both brushing and flossing, and that parents should be involved until age 10. Pat also showed us how to brush in small circles, not scrubbing, on each tooth, and then brushing downwards three times while singing, “Wiggle, jiggle, wiggle, jiggle, 1, 2, 3” and then moving on to the next one. She let each child practice on Ally – though Luke was a big shy of her big smile.
After Pat left we concluded a science project to demonstrate just how important it is to brush.
Start with a jar (I’d recommend a wide-mouth one), an egg, a tube of toothpaste, and some vinegar. I’ve used both cider and white for this – both work fine.
Squeeze out the tube of toothpaste into the jar. Try not to get any on the sides. I realize that this seems like a lot, but it takes a lot for this to work – and it’s a very visual demo of why brushing and toothpaste is important.
Next, nestle the egg into the toothpaste nest at the bottom. Bury half of the egg in the toothpaste and let the other half sticking out, hopefully toothpaste-free (this is why a wide-mouth jar is important – my hand didn’t fit in there well!).
Using the egg as a target so that none of the toothpaste washes away, slowly pour vinegar into the jar on top of the egg. Fill the jar to about an inch past the top of the egg.
Let the jar sit for 2-5 days. I wouldn’t wait much longer than that, but it will take a few days for the magic to happen. When the egg is ready, you should see that lovely cloud of bubbles at the top of the egg. Again, be sure to wait a few days! Just set it on a shelf somewhere and watch what happens while the vinegar works.
When it’s time, pour out the vinegar and rescue the egg. Holding it carefully, wipe away or wash under a gentle spray of water to remove excess toothpaste.
Your egg will now look like this! The vinegar, an acid, has eaten away at the shell of the egg, which is made of protein.
If you consider the eggshell to be like the enamel on your teeth, you can see what plague will do to the finish of your teeth. Be sure to carefully tap your fingernail on the white shell – see how hard and firm it still is? Didn’t the toothpaste do a great job of protecting it from the tough plague germs?
Then try to tap the soft brown top. The shell is gone, leaving only the outer membrane. Pushing gently, you can actually push into the egg – it’s that soft. Who wants a tooth that looks like this?!! I think I’ll brush!
Disclaimer: As this entire project is done with a raw egg, dispose of egg carefully when finished. I’ve never broken one in nearly 10 years of doing this project, so the eggs are tougher than they look – but I’m sure it’s still possible, and I know they won’t smell pretty if they break. 🙂
Field Work Friday – The Conservators’ Center
I must admit, I can’t remember the name of this cat. She just kept pacing and pacing throughout part of her cage as we stood, watching, and learning about her. I felt so bad for making her nervous that I missed hearing anything else!
I’ve never heard of a binturong before. These Asian animals are banana crazy and imperative for keeping the rainforest alive and well. This one in particular showed off for us by climbing all over his habitat, including showing us how to climb down a tree head first!
Everyone seemed fascinated with the wolves, and this arctic-timber wolf in particular stayed right near us for quite some time.
We didn’t faze this tiger. He just hung out in the corner of his pen and watched us all. He was one cool cucumber!
Some of the lions and tigers were born around the same time and have been raised together. There was something awesome about watching these two species of cats play together.
They rested atop this towering play structure in their area, too. I’d love to know what they’re thinking!
My most favorite animal, however, was Arthur, the white tiger. He may be part snow tiger, or his coloring may be due to the abuse he suffered as a baby; but either way, his stripes are very faint and are most prominent on his tail.
We didn’t seem to bother Arthur, either, and were able to catch him playing hide-and-seek with his friend …
and then, amazingly, he went seeking while we were still there! I’ve only seen these types of animals in the zoo, before, when the most action you can hope for is a lazy tail flick as they sleep. To see such strong and mighty animals roughhousing only a few feet away was incredible.
The kids took their own kiddie cameras along and took hundreds of pictures – literally – so we’ll be editing those tomorrow. They were both fascinated with the animals, but also with the new friends that they’ve made today. Isn’t it funny how experiencing something amazing with someone else draws you together?
After a picnic lunch in the Conservators’ Center’s new pavilion, we headed home, full of stories of lions and tigers and … bobcats and lemurs and wolves and all sorts of wonderful animals.
If you’ve never been to The Conservators’ Center and you live in the area, be sure to check it out. It’s definitely worth a visit. If you live far away, be sure to check out what kind of animal resources are in your backyard. You won’t be sorry.