weather
what are three things that causes weather?
thermal energy from the sun, atmospheric pressure changes, and moisture levels.
what is heredity?
the biological process of passing physical, behavioral, or physiological traits from parents to offspring
Why does ice float on water when almost every other substance gets denser and sinks when it freezes?
Ice floats because it is about 9% less dense than liquid water.
How do the circulatory and respiratory systems work together?
The respiratory system takes in oxygen, and the circulatory system transports that oxygen to cells throughout the body.
what is a front?
A front is the transition zone or boundary between two different air masses
Why are most storm clouds dark or black if regular clouds are white?
they are much thicker, denser, and filled with more water droplets than white clouds.
what causes heredity?
all organisms inherit the genetic information specifying the structure and function from their parents.
what is chemistry?
the central science studying the composition, structure, and changes of matter
Which organ is the only one capable of completely regenerating itself?
The liver
What causes a front to stop moving and become stationary?
This happens when the wind blows parallel to the front rather than against it, causing the boundary to stall.
Why do tornadoes only happen in certain parts of the world?
They require a specific type of weather like clashing cold dry air, warm moist air, and wind shear that is most common in the U.S. Great Plains.
Can two brown-eyed parents have a blue-eyed baby?
yes, this is the classic example of recessive traits both parents can carry a blue gene.
Why do onions make you cry?
it involves the release of syn-propanethial-S-oxide, which reacts with the moisture in your eyes to form sulfuric acid.
Why do babies have about 100 more bones than adults?
Many bones fuse together as we grow
Why does a cold front usually bring more storms and bad weather than a warm front?
Cold air is denser and acts like a wedge, forcing warm air up rapidly
Why is a tornado's path so narrow compared to a hurricane?
Tornadoes are called vortexes because born from single thunderstorms focusing energy into a small area but on the other hand hurricanes are massive heat engines fueled by the moisture of entire oceans stretching hundreds of miles wide.
What is the difference between a genotype and a phenotype?
Genotype is the actual genetic makeup while Phenotype is the physical appearance or trait you can see
What is the only metal that is liquid at room temperature?
Mercury
What is the largest organ in the human body?
the skin.
Which front is most likely to produce a tornado?
The collision of a continental polar air mass and a maritime tropical
What is the Dew Point and why is it more important than humidity?
The dew point is the exact temperature the air needs to cool down to for water to condense
What does it mean for a trait to be recessive?
A recessive trait is only expressed as visible if an organism has two copies of that specific allele.
Why is the periodic table shaped the way it is instead of just being a simple list?
it is organized by periodic trends.
Which organ consumes the most energy?
The brain although it's only about 2% of your body mass it uses roughly 20% of your total oxygen and blood supply.
How can you spot an approaching warm front without a map?
Look for high wispy cirrus clouds first. If you see a halo around the sun or moon it often indicates a warm front is 18 to 24 hours away, with rain likely to follow as the clouds lower and thicken