Show:
Cells
Rocks
Simple Machines
Heredity
The Earth
100
The organelle that contains the cell's D.N.A. and is the control center of the cell.
What is Nucleus
100
A naturally formed, inorganic solid that has a definite crystalline structure.
What is a mineral?
100
A simple machine that consists of a bar that pivots at a fixed point called a fulcrum.
What is a lever.
100
This person made the discovery of heredity by a pea plant.
Who is Gregor Mendel.
100
The outermost layer of the Earth.
What is the crust.
200
The organelle that makes lipids, breaks down drugs and other substances, and packages proteins for Golgi complex.
What is E.R. (Endoplasmic Reticulum)
200
A mineral that contains a combination of silicon, oxygen, and one or more metals.
What is a Silicate Mineral.
200
A simple machine that consists of a wheel over which a rope, chain, or wire passes.
What is a pulley.
200
The passing of genetic traits from parent to offspring.
What is heredity.
200
The layer of rock between the Earth's crust and core.
What is the mantle.
300
The organelle found in plant cells that uses energy of sunlight to make food.
What is Chloroplast.
300
A mineral that does not contain compounds of silicon and oxygen.
What is a Nonsilicate Mineral.
300
A simple machine consisting of two circular objects of different sizes.
What is a wheel and axle.
300
This happens when the pollen from the male structure (anther) leads to the female structure (stigma-ovary) of the same plant.
What is self-pollination.
300
the central part of the Earth below the mantle. (Warning: Has 2 answers.)
What is the outer and inner core.
400
The organelle in which amino acids are hooked together to make proteins.
What is Ribosome.
400
The way in which a mineral reflects light.
What is luster.
400
(Double Time: the person who gets this right first gets double the amount of points given; If the team gives the wrong answer, double of the amount of points given are deducted.) A simple machine that is a straight, slanted surface, which facilitates the raising of loads.
What is an inclined plane.
400
This happens when the pollen of the male structure (anther) goes to the female structure (stigma-ovary) of another plant.
What is cross-pollination.
400
All of the continents today used to be formed as one continent called ______.
What is Pangaea.
500
The organelle that breaks down food molecules to make ATP.
What is Mitochondrion.
500
______ is the splitting of a mineral along smooth, flat surfaces, and ______ is the manner in which a mineral breaks along either curved or irregular surfaces.
What is a cleavage and a fracture.
500
A simple machine that is made up of two inclined planes and that moves.
What is a wedge.
500
A diagram used to organize all the possible combinations of offspring from particular parents.
What is the punnett square.
500
This person made the theory of continental drift of the continents to where they are today.
Who is Alfred Wegener.