rocks and minerals
weather
famous scientists
force and motion
the atmosphere
100

what is this weathering that involves the breaking of rocks by expansion and contraction.

what is mechanical weathering

100

what are the most common of the high clouds. They are composed of ice and are thin, wispy clouds blown in high winds into long streamers.

what is cirrus clouds.

100

who invented miner’s safety lamp and Michael Faraday was his assistant.

what is Humphrey Davy

100

what simple machine is used to move objects to a greater height.

what is a inclined plane

100

what is the second layer of the atmosphere

what is the stratosphere

200

what is this type of rock this is formed by the crystallization of magma at the surface of the Earth

what is igneous rock 

200

what is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation but is now used to describe seasonal changes in atmospheric circulation and precipitation.

what is a monsoon

200

who won the 1921 Nobel Prize for Physics for his explanation of the photoelectric effect

what is Albert Einstein

200

what simple machine is used to change the direction of a force.

what is a pulley

200

what kind of cloud is found in the mesosphere

what is a noctillucent cloud

300

what is the name of this accumulation of partially decayed vegetation or organic matter that is unique to natural areas called peat lands, bogs, mires, moors, or muskegs.

what is peat

300

what weather phenomenon traces its origin centuries back to Peruvian fishermen named the weather phenomenon in reference to the newborn Christ.

what is El Nino

300

who wrote about optics, and is credited with inventing calculus

what is Issac Newton

300

what is the name for using simple machines so that the task is easier.

what is mechanical advantage

300

what is this faint, red electrical discharge that occurs high above a thunderstorm

what is a sprite

400

what is this rock formed from heat and pressure inside the earth

what is metamorphic rock

400

what is this belt around the Earth extending approximately five degrees north and south of the equator.

what is the doldrums

400

who is the British physicist who established the Law of Conservation of Energy and studied with John Dalton at the University of Manchester in 1835

what is James Joule

400

Two baseballs are fired into a pile of hay. If one has twice the speed of the other, how much farther does the faster baseball penetrate? (Assume that the force of the haystack on the baseballs is constant).

what is four times faster

400

The region above about 500 km contains mainly oxygen and hydrogen atoms and the second half of this word is sphere

what is the exosphere

500

what is this upland area bounded by low ground on either side (fault scarps)

what is horst

500

what is this stream together with its northern extension the North Atlantic Drift, is a warm and swift Atlantic ocean current that originates in the Gulf of Mexico and stretches to the tip of Florida.

what is Gulf stream

500

This scientist wrote more than 60 works, which included Aphorisms [AF-or-izmz] and Airs, Waters, and Places

Hippocrates

500

if an object which weighs 10 N is dropped from rest from a height of 4 meters above the ground. When it has free fallen 1 meter its total mechanical energy with respect to the ground is .

what is 40 j

500

what is this large atmospheric circulation system with the wind flowing clockwise around it in the Northern Hemisphere.

what is a anti-cyclone