orange juice taste so bad after brushing your teeth?
Spaghetti and meatballs. Peanut butter and jelly.
Milk and cookies. Orange juice and toothpaste. Yuck. You can brush your
teeth and then eat or drink just about anything without much difference,
but something about orange juice, or three somethings, makes it
Toothpaste is made with an ingredient that can
block your tongue’s sweet taste receptors. This ingredient is called
sodium lauryl sulfate, and it is what makes toothpaste foam in your
mouth. When the ingredient blocks the sweet receptors, and you drink
orange juice, all you can taste is the bitterest part of the orange
A second reason is another ingredient found in
toothpaste. One type of fluoride used in toothpaste can be broken down
by the acetic acid in orange juice. Once the fluoride is broken down, it
makes a layer of tin on your tongue. Not enough that you can see, but a
small enough amount that you can notice its taste.
The third reason orange juice tastes bad after
brushing is mint and orange juice probably aren’t the best taste
So, if you want orange juice with your breakfast,
brush afterwards or wait around an hour after brushing.
Why is the
Moon so covered with craters?
When meteorites, or space rocks, fall through the
Earth’s atmosphere, usually they get burned up. That is what causes
shooting stars. Occasionally, a meteorite will fall to the ground and
form a crater. These craters get erased by wind, water, and other
The moon has no weather, no water, no wind, and no
atmosphere. When a meteorite falls to the moon’s surface, it strikes and
leaves a crater. Because of the lack of water, wind and weather, the
crater doesn’t get erased. Even the footprints of the astronauts who
landed on the moon in 1969 are still there.
Why do stars
Twinkle, twinkle, little star, how I wonder what
you are, or maybe how I wonder why you are. When you look into the night
sky, the stars seem to twinkle back at you. In truth, the star itself
does no twinkling whatsoever.
Light from the stars must pass through Earth’s
atmosphere to where you are observing. The atmosphere has many layers
and differing temperatures. These differences from one layer to another
cause the light to bend, or refract. To see refraction in action, fill a
clear glass with water and set a pencil in it. When you look through the
glass, the edges of the pencil seem not to match at the water’s surface.
The same thing is happening to light as it passes through the
atmosphere. When light refracts, it causes a shift in the light. The
constant shifting that you see is what makes the stars appear to be