Friday, January 30, 2009

Teach Them Science

A new website called Teach Them Science was mentioned in stories about the recent defeat in Texas of anti-evolution statements some school officials wanted to insert into the state's textbooks. This threat is bigger than just Texas, because textbook publishers cater to the Texas market -- which buys in bulk for the entire state. Here is what the National Center for Science Education says about the new website:
As the Texas state board of education prepares to vote on a revised set of state science standards, two organizations — one secular, one religious — have joined forces to produce a new website, Teach Them Science, in order to advocate for a twenty-first-century science education for the students in Texas's public schools. Sponsored by the Center for Inquiry Austin and the Clergy Letter Project, the Teach Them Science website is intended to empower parents, educators, and concerned citizens to rally in support of the new standards, which treat evolution as the central and unifying principle of the biological sciences that it is.
The National Center for Science Education's own site has some interesting information about the why the controversy is important:
  • The new standards last for ten years. The SBOE voted on the new standards during their January 2009 meeting, and barring a reverse vote in March, the new standards will apply for ten years.
  • Evolution is science, not politics. Anti-evolutionists argue against evolution using rhetoric, but it takes new evidence to change science. They are teaching students that science works like politics. Evolution is one of the most strongly confirmed theories in science.
  • God and evolution get along just fine. Many people of faith accept evolution, including both clergy and scientists.
  • Science is our children's future. If we teach students that science works in ways that it does not, we risk their future in science. We also risk our country's future in science.
About that site:
The National Center for Science Education (NCSE) is a not-for-profit, membership organization providing information and resources for schools, parents and concerned citizens working to keep evolution in public school science education. We educate the press and public about the scientific, educational, and legal aspects of the creation and evolution controversy, and supply needed information and advice to defend good science education at local, state, and national levels. Our 4000 members are scientists, teachers, clergy, and citizens with diverse religious affiliations.

Thursday, January 22, 2009

Triops 2.0

About two weeks ago, we found that the triops tank, which we never emptied, has gotten a new resident. Apparently, our old one laid some eggs and one managed to hatch. The remarkable thing about this guy is that we didn't do anything to help him hatch. [Mom's Note: In other words, we didn't keep him under a warming lamp, or put in a conditioning pack with special microscopic nutrients, or any of the other stuff we did for Triops No. 1!] After the old triops died, we just let the tank sit on a shelf and he hatched a few days afterwards.

We haven't gotten many photos of him yet, but we do have this:




He is now sitting on a table next to the fish tank and the hermit crab jar. Without the heat lamp, the water isn't getting murky with algae or whatever living goop we had in the tank with his predecesor. In fact, he seems to be cleaning the algae off the side of the tank! We will update on him as more happens.

Saturday, January 17, 2009

Do You Have Your Darwin Action Figure Yet?


Sorry, I couldn't resist. I am VERY busy for the next two weeks, but I will be sure to have the kids update some of our ongoing projects.

Sunday, January 11, 2009

More Evolution Resources from Nature Magazine


To add to the post a few days back, I just found this full page of Darwin resources at Nature Magazine. You'll need a subscription to read most of them, but there is a free a 15-point evolution cheat sheet you can print and keep in your purse (or, I guess, download to your PDA) for when your creationist friends gang up on you. And you can scroll down for a slideshow on the evolution of the eye.

(Everyone's working their way through the nifty Scientific American issue on The Evolution of Evolution, by the way.)

Wednesday, January 7, 2009

We mourn our friend the Triops.

A few weeks ago, on December 21, our triops passed away during the night. He lived to be 53 days, more than half the age of the longest living triops.

We took some photos of his lifeless body and noticed that he (or she, or it) had some egg sacs, we didn't see him lay any eggs, but it's possible. So we're going to let the tank dry out. (The eggs need to be dry before hatching) So far, the tank hasn't been drying very fast, but we've moved it to a warmer place which will hopefully work.



The top two photos show his egg sacs that are filled with eggs. The bottom left is his underside, and the bottom right is a close-up of his tail.



Some more parts of the triops. The upper left photo shows the algae on his shell, the photo on the right is his back legs, and the bottom two show his eyes.

Thursday, January 1, 2009

Nature Magazine's Evolution Piece (via Wired)

Happy New Year! Just wanted to save the link to 12 Elegant Examples of Evolution
by Wired.com blogger Brandon Keim. It has some interesting examples of evolution.

(You have my permission to skip the debate in the comments.)

Tuesday, December 23, 2008

More Hydroponics - Sprouts

We've done a small side project to the hydroponics project. This one is about sprouts. It wasn't that hard to do since all that had to be done was rinsing the seeds. It took us about 5 days to do this project, and we managed to get great results. After using them up in sandwiches, we started another jar.

These are the sprout seeds, the bigs ones are radish seeds, and the smaller ones are alfalfa.



This is us setting up the jars, first we just some pantyhose to make the top of the jar, then we added water and the seeds and put them in the cabinet to dry.

Make a sprouter jar. (Source)
  1. Cut a piece of pantyhose or cheesecloth to fit over the top of a quart jar. It needs to be big enough to drape over the edge at least an inch or so.
  2. Keep it in place by stretching a rubber band around the outer edge of the jar. If it is a canning jar, you can also use the rim from a canning lid.


The seeds after they finished growing. We rinsed and dehulled them. Then we dried them and put them in bags to be eaten.

Sprout alfalfa or radish seeds (Source: SproutPeople.com)

1. Put 1 tablespoon of alfalfa sees or 3 tables of radish seeds in your sprouter jar. Cover by stretching your fabric over the top and fastening as described above.

2. Put jars someplace out of direct light where they won't be disturbed. Allow seeds to soak for 6-12 hours.

3. Drain off the soak water.

4. Rinse thoroughly with cool water. Drain thoroughly.

5. Set your sprouter anywhere out of direct sunlight and at room temperature between rinses. This is where your sprouts do their growing.

6. Rinse and drain again every 8-12 hours for 3 days.

7. Greening: On the 4th day relocate your sprouts to a brighter location. Avoid direct sun - it can cook your sprouts. Indirect sunlight is best but virtually any light will do. Experiment - you will be amazed at how little light sprouts require to green up.

8. Continue to rinse and drain every 8-12 hours.

9. Finishing: Your sprouts will be done during day 5 or 6. The majority of sprouts will have open leaves which will be green if you exposed them to light.

10. De-Hull: Before your final rinse remove the seed hulls. Transfer the sprouts to a big (at least 3-4 times the volume of your sprouter) pot or bowl, fill with cool water, loosen the sprout mass and agitate with your hand. Skim the hulls off the surface. Return the sprouts to your sprouter for their Rinse and Drain.

11. Harvest: Your sprouts are done 8-12 hours after your final rinse. After the de-hulling and the final rinse we need to drain very thoroughly and let our sprouts dry a bit. That will help them keep longer in the refrigerator. Let sit for 8-12 hours OR use a salad spinner.

12. Refrigerate: Transfer the sprout crop to a plastic bag or the sealed container of your choice.