Math brain teasers.

Many girls think math isn't always as interesting as science is. I will agree that it doesn't apply to our lives in such obvious ways. Until I find a good math topic, lets play some math games. They are brain teasers, so don't get frustrated if you don't get them. (Answers at the bottom if the question has an answer)

1.Why are some letters above the red line and some letters below?

2. Can you move just 3 pennys and turn the triangle upside down?

cCan you move just 2 tothpicks to make 7 squares?

4. 
   1)  Pick a number between 1 and 10 (including 1 or 10).
   2)  Multiply your number by 9.
   3)  Add the digits of the number created in step two.
   4)  Subtract 5 from the number created in step three.
   5)  Find the letter in the alphabet that corresponds to the number created in step four.
            ex: 1=A, 2=B, 3=C,...
   6)  Pick a country in Europe that starts with the letter you found in step five.
   7)  Pick an animal that starts with the last letter of your country.
   8)  Pick a color that starts with the last letter of your animal.


Your color is ORANGE!


5.
   1)  Pick a number between 1 and 9 (including 1 or 9).
   2)  Multiply your number by 2.
   3)  Add 5 to the number you created in step two.
   4)  Multiply the number you created in step three by 50.
   5)  If you haven't had your birthday yet this year, add 1760 to the number you created in step four.. If you've had your birthday, add 1761 to that number.
   6)  Subtract the year you were born (ex: 1995) from the number you created in step five.
   the first digit of your number is the number you started with and the last is you age!


6.Without lifting your pencil, can you connect all of the dots below with four straight lines?

#1. All the letters made out of only straight lines are on top, wile the ones with curves are on the bottom


#2
      

          

#3

    .

Turtles & Tortoises.

Turtles, tortoises what’s the difference? Believe it or not, a lot.

Their habitat, habits, and shells are just a few.

#1. Tortoises live on land. They don’t swim.

        Turtles live most of their life in the water.

2#. Tortoises eat low growing shrubs and even cactuses.

         Turtles eat seaweed fish and even stinging jellyfish

                                                                                                   

#3. Turtles often have webbed feet, while tortoises feet are short & stumpy for walking.

#4. A turtle’s shell is very aerodynamic, which means it cuts through air and or water very well, while a Tortoise’s is large and very round.

                             

turtle                                                  tortoise

#5. This is the MOST important. A turtle lives in or near the water, while a tortoise can live in forests, or even harsh dry deserts.

In honor of Henny.

Science article #1 Moths don’t eat your clothing.

When you think of a moth do you think of something like this?

                          

Well, guess what,

The truth is,

99.9999% of MOTHS DON’T EAT YOUR CLOTHING!!!!!!

 Carpet beetles do.

Carpet beetle

and 1 type of moth caterpillar does. Here is the dictionary definition.

Tineola bisselliella, known as the Common Clothes Moth, Webbing Clothes Moth, or simply Clothing Moth, is a species of fungus moth (family Tineidae). Therein it belongs to the subfamily Tineinae. It is the type species of its genus Tineola. The specific name is commonly miss-spelled biselliella – for example by G. A. W. Herrich-Schäffer, when he established Tineola in 1853. [1]The caterpillars of this moth are considered a serious pest, as they can derive nourishment from clothing – in particular wool, but many other natural fibers – and also, like most related species, from stored produce.(wikipedia)

Now to make up for all your accusations against moths, let’s learn a bit about them.

The moths you see are common house moths. They can do nothing, I repeat, NOTHING, to hurt you, or harm you in any way. They are just nighttime pollinators, and have accidently gotten in your house because they always fly to the light. Just shoo them out with your hand, or take them out with a cup.

These are Luna moths. (Don’t worry they aren’t flying into your house.)  They are about half the size of your hand. Seeing one is a rare treat. They seem to glow when they fly. One of my pictures above is male and one is female. Can you guess which is which? The lovely moth on the right is the male. You can tell by his fluffy antennas. The female’s antennas are fluffy, but not quite as much.

These are Polyphemus moths. They are the same size as the Luna moths. Again you won’t see them that often. You can identify their gender the same way you do Luna moths. In fact, that is how you identify all moths’ gender. Again they are a rare treat to see in action. I have been lucky enough to raise both of them. Do you see their beautiful eyespots? Scroll down to see what they’re for.

 

AHHH! Did that scare you? Well guess what. It was supposed to.

This is a close up of an eyespot on a moth, and is a common defense. But to humans it sure is beautiful.

Don’t run from moths. Run to them.