Sunday, July 19, 2015

Melting Ice in the Fridge

Saturday night at dinner time had us conversing about our world. Somehow, the conversation was turned to, "What do you think will happen if we put ice in the fridge?" J, without hesitation, hypothesized that it would melt. Why? Because he's just that smart (intuition).

John and J put an ice in a cup and placed it in the fridge over night.

J checked on it during breakfast this morning and found that it wasn't completely melted! He was baffled. We left it in the fridge until lunch time, when it was found completely melted. They put another piece of ice in a cup and left if out between breakfast and lunch. That too was completely melted by lunch time.

Why did the fridge ice take longer to melt?

The temperature in the fridge was above freezing, so the ice would melt. It took a long time since the temperature in the fridge was in the high 30 (deg F) range. The air from the fridge did melt the ice. It was just slightly warmer than the ice itself, so it took a long time.

The temperature of the room (~72 deg F) was much higher than freezing point (32 deg F), so it didn't take as long to melt the ice cube.

Other things you can try with ice:

Melt an ice cube in front of a fan. Have one away from the fan to compare the two. What happened?

Record the temperature of various locations around your house (fridge, freezer, closet, patio, washing machine, etc.) with a thermometer and predict which ice cube will melt the fastest based on the knowledge you learned here. Place an ice cube in various locations and see if you're right!

Related Posts:
     *Melting ice, measuring temperature
     *Melting ice with colors

Saturday, May 16, 2015

Dolly Science

So, after Pi Day, my husband, John, came down with pneumonia for two weeks, we had Miss J's 1st birthday, and immediately after that, John came down with shingles (coincidentally, on the day Miss J was vaccinated against chicken pox and the day J's sixth birthday present of the chicken pox arrived on our doorstep). So needless-to-say, I've been working full time and mommying two (at times, sick) kids, basically on my own for two months. I'll admit that there have been days I've pooped out before 8p.

Background on the lesson:  I was able to save a few of my childhood dolls. Miss J has taken a particular liking to my Cabbage Patch doll, Meggie. She gets so excited any time we pull her out. Besides being a way to get her to stop evening screams, she is learning a lot. She took interest in this doll right around 7 months, and the bond has only grown stronger.



Science lessons learned by playing with a baby doll

  • Anatomy!! Ask about, describe, and point out parts of the doll's body. 
    • Miss J's favorites are the doll's nose, toes, and belly button.
      • Big bro, J, is joining in on the fun and knows that the belly button is where babies were attached to their mommies and how they received food while inside their mommies.
      • J likes to help her identify body parts and will even sing songs (ie. Head, Shoulders, Knees, and Toes, the Hokie Pokie, etc.) with her and the baby doll.
  • Have them teach: Babies like to show you what they have learned. Ask him/her to point to the body part on the baby doll, him/herself, and you.
  • Relationships and conclusions: Deciding what do do once you know a result is important. Ask your baby what to do if the baby doll is cold/tired/hungry/grumpy/happy/excited. How would the baby express if she is tired, happy, grumpy, etc.?
    • Miss J loves to cover her baby with a blankie, giving hugs, tickling the baby, cheering with baby, clapping the baby's hands, giving the baby a binkie, etc.
  • Order and direction: Science is full of order: you do this, then this, and then that (ie. put on bib, eat food, and clean up). 
    • In science, skipping steps can lead to bigger problems. Equate it to bathing your kid and then giving them that big giant bowl of chocolate pudding. Some things you just don't do out of order.
    • Show order while playing with the baby doll. See if your baby catches you doing something out of order or not what is expected. 
      • Do something silly like put the baby doll's shoes on before her socks. 
      • Of course, discuss it with your child! Communication is key in science.
  • Practice: Retention (remembering how to do something) is important in science, so practice skills!
    • Miss J loves putting bibs on Meggie and then pretend spoon feeding her.

Just in case anyone was wondering, Big bro, J, also played with a doll at an early age (no gender bias here):


What science lessons can you learn by having simple childhood toys around?

Sunday, March 22, 2015

Ultimate Pi Day Party! 3-14-15 9:26:53

Last week, we celebrated the Ultimate Pi Day (3.141592653...) with a Pi Party in the park. We had 20-30 people attend and had so much fun! Here's our Pi(e) spread complete with many homemade and store bought pies.


One of our nerdy attendees made this sign by the pie. Do you get it? Also, our local grocery store got in on the Pi Day fun...notice the price of the mini pie?



We lined the other tables with butcher paper and traced circles for Pi Day Posters and Investigating Pi. One of the attendees decided to reverse my investigating pi lesson to measuring the circumference with a string and seeing how many times she could measure the diameter from the circumference string (a little more than 3). The kids were more excited about the Pi-rate Treasure Hunt! Who can blame them?




Pi-rate booty!

Pi-rate Treasure Hunt:

I printed out an aerial Google Map of the park with clue #1 marked. The park where we had the event had a walking path, so I stuck the clues in obvious places along the path for the problems. Hints were more hidden, so the participants had to actively look for those if they needed the help. The kids had to answer 5 questions (preferably from the same set of questions) to get a prize from the treasure chest.

I had three levels of math problems for the kids to find and solve. I cut and pasted the problems onto colorful 3x5 cards:

Easy (green): Preschool
Medium (orange): k-2 grade
Hard (pink) = 3 grade+

Then I had some problems for adults (yellow) who might have accompanied their kids around. Those were more high school math, up to pre-algebra.

Here are the problems I came up with (note, my goal was to not make anyone cry).

Easy Pi-rate treasure hunt problems
Medium Pi-rate treasure hunt problems
Hard Pi-rate treasure hunt problems
Pi-rate treasure hunt problems for the adults

How did you fare on the Pi-rate Treasure Hunt questions?

How did you celebrate the Ultimate Pi Day??


Just for fun, here's our annual Pi Day Family Photo:


And one of the kids and me:


Previous years' Pi Day Photos.

Thursday, March 12, 2015

Pi-rate Treasure Hunt

Guess what?? Pi Day falls on a Saturday this year!! We're definitely celebrating with a Pi Party in the park. We're going to be making Pi Day Posters and Investigating Pi (and eating pie, but that's a normal Pi Day activity). Along with that fun, I'm creating a treasure map and some fun math questions and sending the kids on a Pi-rate Treasure Hunt!


I'll have three different levels of 5 math questions along a path of the park. Clues to solving the problems if they need help will be hidden nearby, but they have to look for them! After solving the fifth problem, they'll get a small prize (leftover party goodies, like mardi gras beads and silly glasses from years of storage).

Easy - 3-5 year olds (preschool)
Medium - 5-7 year olds (k-2nd)
Hard - 7-9 year olds (3-4th)

And just for the adults to play alongside their kiddos:
Adult - Trig and pre-calculus level - brush up on your equations :-)

I don't want to publish all of the problems yet, but here are the preschool Pi-rate Treasure Hunt questions.

Come back after Pi Day to get the complete list of questions and how the hunt went!

Happy Almost Pi Day to you!!

Related Post:
Ultimate Pi Party Pi-rate Treasure Hunt - all questions included.

Wednesday, February 11, 2015

A Different Perspective


One of Miss J's favorite things recently is being flipped upside down. She'll crawl up to me and put her head in my lap as a sign to flip her upside down.

I love caving in and letting her hang upside down. Why?

Babies love to predict what is going to happen next. They crave routine.

She is developing a hypothesis. I'm not so sure what hypothesis/hypotheses she is forming. Maybe it's if I put my head in Mommy's lap, she'll flip me upside down. Most of the time I'll swing her upside down. Every once in a while, I'll do something else, like tickle her to see her reaction.

The world also looks different while hanging upside down. People seem to be hanging from the ceiling! It's not really so, but it looks like it when you're upside down.

Your body feels different! Blood rushes to your head, and endorphins kick in. You try it - handstand on the couch, I won't tell anyone.

Babies are discovering the world around them. Help them out a little bit.