Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Sunday, July 03, 2011

Spontaneous eruption



I have to be honest, I'm really not the most spontaneous mama. I'm good at hemming and haw-ing at requests until I have a chance to think out the details.

But there's something about Sunday afternoons. I was still feeling the Love from church when we got home and Littlest immediately asked to make a volcano.


Being the youngest, I sometimes forget that he hasn't done everything his brothers have. And really, it's such an easy, fun project -- how could say I say anything but, "Sure!"?

The last time we did this most-classic-of-all-classic elementary science experiments was at a homeschooling conference. (The kids used red clay to shape the volcanoes -- unfortunately, we left them in the trunk of our rental car! Oops!)


We did a super-easy version. Here's what you need:

A wide bowl or pan.
A tall cup.
Newspaper or paper towels.
Aluminum foil
Washable paint and brushes
Baking soda
Vinegar
Food coloring



Put the cup in the pan. Wrap some paper around the outside of the cup. Tuck foil inside and down the sides of the cup to shape the mountain. Paint the foil.

Wait for the paint to dry. (That's the hard part!)

Add a few drops of red and yellow or orange food coloring to a cup of vinegar. Spoon a few tablespoons of baking soda into the cup.

Slowly pour the vinegar into the volcano and watch it erupt! (And just see if you don't end up using all the baking soda and vinegar in the house! ;)












Tuesday, May 31, 2011

May was for Play!

Can May really be over? The weather's been teasing me; if it's almost June, shouldn't it be hot already?? (Not that I'm complaining!)

We began the month with our last Homeschool Skate Day of the year. They'll do one more, but we'll be at Vacation Bible School next week. It's been so nice to see this event grow in our community! We're really grateful for supportive local business owners!

A new geography puzzle kept 'em busy one morning... 


A solar car kit was a birthday present. Eldest was quite focused on the technical construction. It worked -- the wheels spin as long as it's in the sun!



Sometimes we just lie around reading. Even Littlest picked out a chapter book at the library to "read" to himself. (He's also starting to read to me from the Bob Books!)


And then there was the obstacle course-fort...


And the Saturday I heard hysterical laughing outside, and went to see what was so funny... That box entertained them for more than two hours, nonstop! And then it got left out in a freak rainstorm that night.

 


Eldest spent last week learning how to ride a bicycle!!

Middlest let him borrow his bike to learn on, since Eldest has never wanted one until now. He braved scraped ankles and bruised knees, and went through more band-aids than he's ever used before. (Middlest is the one who's always covered in band-aids.) We're so proud of him!!


Somehow I thought we'd do more school in May... but with weather this beautiful?!!  The boys were itching to be outside even more often than they were itching from allergies.

So, they did a lot of experimental physics this month...




And some chemistry, too...


We did lots of other things this month, too, like start seedlings, go berry-picking, and visit an alpaca farm. But I left my camera battery at home in the charger that day!

How have you been enjoying spring?

Monday, January 24, 2011

Sunday afternoon science: Bottle rocket!


Sometimes it's nice to do the fun things when Dad's home.

On Saturday, Scott and the boys got out the baking soda and vinegar "Meteor Rocket" kit my grandmother gave them for Christmas. He helped them cut out the balsa wood aft fins and attach them to the liter bottle in the kit, which also included a nose cone, a fuel tube, and a screw-in plug.




Yesterday, even Papa was around to join in for the trip to the park launching pad.




They measured out the baking soda into the tube, carefully poured in the vinegar into the bottle, inserted the tube, gave it a quick shake, and...




Nothing happened. Well, not exactly nothing. The mixture fizzed a bit, and we got the attention of all the kids in the park.

Rinse and repeat.



Still no lift-off -- and then my camera battery died. By take 3, I remembered I had my iPhone in my pocket!






And, BLAST OFF!!


A few seconds after it was set on the ground, the rocket shot about 20 feet into the air, then fell back only a foot away from the launch site.


HOORAY!!!  The crowd was ecstatic!

Take 4 shot sideways because it tipped over when Scott set it down. Take 5 was a dud. Take 6 was in the air again. And then the photographer had to go home to make dinner.
 
This is a good explanation of what happens between the vinegar and baking soda to make the bottle rocket fly.

You don't have to have a kit; there are lots of homemade bottle rockets online. This one is very similar to ours. You can also do mix the two reactive ingredients in a film canister, if you're able to find one. The small size of the canister makes for a much higher launch.

Another version of the bottle rocket uses water and a bicycle pump. A more dangerous version uses a small amount of rubbing alcohol and a match at the end of a 2-liter bottle. Scott tried that one a while back, but no luck.

Have you done this before? Let me know if you decide to try it!

Thursday, October 07, 2010

Early morning prayers

She gets up while it is still dark,
She provides food for her family...
--Proverbs 31:15
The days are growing shorter, and the early mornings darker. My doctor told me two months ago to sleep in because my body needed it, but this week I've been waking up in the dark, much earlier than usual.

I don't know if it's because Littlest spent a few days waking at 5 while adjusting to the colder temperatures, or because my cortisol levels are improving. I'm not seeing other evidence of this, but I want to take advantage of my eyes popping open -- better to get up early and take a nap later, than oversleep. I went back to sleep the other day after waking up when Scott got up, and my only reward was a nightmare.
She watches over the affairs of her household,
and does not eat the bread of idleness.
--Proverbs 31:27
There have been days recently when I could not get out of bed. When I felt the same as when I had mononucleosis as a child, and lay in bed too tired to even watch tv. There have been other days when I moved as much as I could, but wore out quickly. There have been days when I felt "normal" again, and used every ounce I had, only to be useless the next day. And there have been times when I probably could do more, but chose to be idle instead.

It is difficult with a chronic illness to find the balance between resting to recover, and working to recover. Because if I do not put some effort into planning and preparing meals, and learning more about adrenal fatigue, it may get worse. I need to lean on the Lord every day, and continue to pray for healing, but he has also given us "every green plant for food" -- part of His healing regimen is ready for the eating.

I had a few good weeks after my diagnosis, after getting off sugar and caffeine, taking my supplements, and improving my diet. It was almost too easy. And it didn't last. I got the flu, my adrenals took another hit, and I needed to start all over.
It does not depend, therefore, on man's desire or effort, but on God's mercy.
--Romans 9:16
I have to be careful not to grow discouraged, when eating feels like a chore -- when so many things that used to give me pleasure are now forbidden. I have to be careful not to despair, when my energy runs out before the day's even begun, when the infection for which I cannot take medicine returns, when my blood sugar and hormones cause my mood to drop dangerously low and the boys can see it on my face, even if I bite my tongue.
All day long I have been plagued, and punished every morning.
--Psalm 73:14

And yet, I know this is such a mild, temporary ailment. All around me I witness others suffering from life-threatening disease, from heart-breaking circumstances, from chronic pain which will not end.

I know I am abundantly blessed, with a husband who loves and cares for me, with three beautiful, healthy children, with a home we can afford, and food and clothing as we need it, with friends who know and love me, and parents who live close and are not estranged.

I can know all these things, but if I do not put my hope in the Lord, if I do not listen carefully to His voice, and not my raging thoughts, then I grow hopeless.
But now, Lord, what do I look for?
My hope is in You.
--Psalm 39:7
I am so thankful that I know what the issue is now, and that healing is on its way. I am so thankful that He is with me every step of the way. I am so thankful that He's given us His Word for encouragement, and made healing possible with His blood.

Tuesday, September 21, 2010

Edible earth science



We've been reading about the layers of the atmosphere in "A Child's Geography," and did one of the suggested activities last week -- making the layers in a jar with flour, sugar, and cornmeal.


When we were finished, the boys asked, "Now do we get to use the ingredients to make cookies?"

That wasn't in the book -- but how could I refuse? ;)


I didn't know exactly how much flour or sugar was in the two filled jars, but I added two sticks of butter, two eggs, a teaspoon each of vanilla and baking soda, a pinch of salt, and half a bag of chocolate chips, and that seemed to work just fine. The cornmeal gave the cookies a nice crispy bite.

We called them atmospheric cookies with meteor chips!

Thursday, June 03, 2010

School year sum-up, '09-'10


Well, this seems like a good time to recall and record our academic learnings of the last year! When we refer to "the last day of school" around here, we're usually talking about Daddy's last day before vacation. Or sometimes, the day the schoolkids return to public spaces...

What we did for math this year...
  • Monopoly!
  • Marshmallow and toothpick polyhedrons
  • Baking (Less than last year, because Mommy gained 10 pounds during The Summer of the Peach Cobbler.)
  • Legos!!!
  • Usborne Book of Sticker Math
  • Pirates of the Carribean LIFE (money, money, money)
  • Allowance (and way too many trips to Target)
  • Grossology urine output experiment (you don't want to know, but it involved measurement and adding fractions, so it counts as math!)
  • Tangrams (geometric shapes)
History we studied this year...
 
 Chapter books we read together (or listened to):
  • Prince Caspian
  • Voyage of the Dawn Treader
  • The Wizard of Oz
  • The Boggart by Susan Cooper
  • D'Aulaire's Book of Greek Myths
  • Percy Jackson & The Olympians: The Lightning Thief
  • Percy Jackson & The Olympians 2: Sea of Monsters
  • Pippi Longstocking
  • The Miraculous Journey of Edward Tulane
  • Percy Jackson & The Olympians 3: The Titan's Curse
  • How to Train Your Dragon
  • A Bear Called Paddington
  • Winnie-the-Pooh and A House on Pooh Corner
  • Percy Jackson & The Olympians 4: Battle of the Labyrinth
 Science subjects we explored...
Wow. This list makes it look like we were really busy! Which is a relief to this mama, because I felt sometimes like I was studying about homeschooling more than actually doing it.

Some of what we did this year was planned, some of it was not. Since my boys are pretty much interested in everything, it's not hard to follow those interests. We sure had a lot of fun, though there were plenty of days of doing just whatever.

Looking through my pictures for this post, there were actually things I forgot to blog about! So, maybe I can get to that next week while the boys are at Vacation Bible School. I was going to help out with that, but Scott gave me the week off. ;)

What was your favorite homeschooling memory this year?

Tuesday, May 25, 2010

A chick is hatched.

On Sunday we visited our friends up the mountain, and happened to be there at just the right moment.

They were incubating eggs from their own chickens, and one little egg was exactly 21 days old. Peck, peck, peck, we heard...


A little while later, the chick had pecked all around the top of her shell, and pushed her head out...


The kids were excited to see her hatch, and waited patiently as the chick slowly rolled out of her shell, and stretched up onto her feet...


Congrats to the proud papa and mamas...


...and older siblings...


After another 24 hours in the incubator, the new chick can be moved into the nursery with the other newborns...


And when she has her feathers, it's out into the wide, wide world!

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