During the soft summer dusk, there’s nothing as relaxing
as watching the luminescent display of fireflies. This
magical light show is one of nature’s most fantastic
gifts and one of the reasons these beetles are also called
lightning bugs. What makes
fireflies light up? When
oxygen is added to compounds that fireflies keep in a group
of special “light
cells" called photocytes a chemical reaction occurs. The
reaction creates a light that is called bioluminescence. Of
the compounds in these light cells, luciferin, luciferase,
magnesium, and ATP, it is luciferin that is most reactive to
oxygen. The more oxygen the firefly breathes, the brighter
the light he or she shines. Why do lightning bugs make lightning? This
chemical reaction occurs in both males and females as part
of their mating ritual. The males begin the process by
signaling the female. If she responds with her own light,
a courtship begins. One can tell which of the two is
signaling based on the duration of the flash. Males tend
to have shorter flashes of light than females.
Every species has its own flash pattern.
[EDITOR’S NOTE:Discover
more interesting science facts when you study with Incredible
Tutor™ Science
titles for TAKS and general test-prep!]
Conference
News
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Scot Goen is the TASA Winner!
We were pleased to give 10 free licenses of Incredible
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Scot Goen! Mr. Goen is the Superintendent of Ballinger ISD in Texas. He
entered to win the free software by stopping by our booth at the TASA
Summer Conference in Austin, Texas in June.
Recipe:
Macaroni Salad
This recipe makes a perfect picnic companion. Thanks
to Antonette Thomas of Columbus, Texas for submitting it!
Ingredients:
2 packages of elbow macaroni
(cooked al dente and cooled)
3 cans drained tuna
2 cans chopped olives
1 cup frozen peas
1/2 cup fresh grated parmesan cheese
1 tablespoon soy sauce
1/2 teaspoon garlic powder
Mayonnaise
Directions:
Mix all the ingredients together adding enough mayonnaise
so that it’s very creamy and not dry.
Allow
it to sit overnight in the fridge before eating.
10
Fun Picnic Ideas
1.
Bring
extra blankets. Pile up blankets for an extra cushy picnic spot.
2.
Pack
the pillows. Be sure to bring pillows so you can lie on the picnic
blanket and watch the clouds go by (or nap!).
3.
Carry
a cutting board. Not only can you use it to slice cheeses and
breads at your picnic site, but it also gives you a nice flat
surface upon which to serve your feast.
4.
Dine
with disposables. While it’s not fancy, packing disposable
plates, cups, and silverware, significantly lowers the level
of stress and keeps your picnic a relaxing affair just like it’s
meant to be!
5.
Repel
insects. Insects
such as mosquitoes might be as attracted to you as you are to
the idea of an afternoon picnic, so be sure to bring along some
insect repellant.
6.
Ant
proof with talcum powder. By making a ring around your food or the blanket itself
you’ll keep the majority of ants at bay.
7.
Remember
clean-up supplies. Pack a wet washcloth in a zipper
baggie and a dry one separately so that sticky hands won’t
keep you from delighting in your post-meal moments.
8.
Freeze
drinks the night before. When you freeze drinks the
night before not only will they be nice and cool once you arrive
at your picnic site, but they can be used in your ice chest to
keep your food cold.
9.
Bring a book. Dust off an old tome of poetry and
read it aloud to your companion(s) while sitting in the shade
of an old tree.
10.
Stay long enough for the
lightning bugs to come out. End a day perfectly
by staying until dusk so you can watch the firefly parade-of-lights!
[EDITOR’S
NOTE:Check
out the tasty picnic recipe on the left, submitted by one our readers!]