This molecule carries the genetic instructions for life and has a double-helix structure.
What is DNA?
This is the name of the rows on the periodic table, which indicate the number of electron shells in an atom.
What are periods?
This is the measure of how far an object moves in a specific amount of time.
What is speed?
This scientist is known for his theory of natural selection, outlined in On the Origin of Species.
Who is Charles Darwin?
This is the closest planet to the Sun in our solar system.
What is Mercury?
This term refers to the observable characteristics of an organism, such as eye color or height.
What is phenotype?
Increasing this factor, a measure of the heat energy in a system, typically speeds up the rate of a chemical reaction.
What is temperature?
The tendency of an object to resist a change in motion is known as this.
What is inertia?
These are physical or behavioral traits that help an organism survive in its environment.
What are adaptations?
This part of a plant absorbs sunlight for photosynthesis.
What is leaves?
Gregor Mendel used this type of plant to study inheritance patterns and develop the laws of genetics.
What is a pea plant?
This group of elements on the periodic table, known for being highly reactive, includes fluorine and chlorine.
What are halogens?
This type of force opposes motion between two surfaces in contact and is why objects slow down.
What is friction?
This term describes the process by which organisms better adapted to their environment are more likely to survive and reproduce.
What is natural selection?
This is the state of matter where particles are tightly packed together and vibrate in place.
What is a solid?
These structures, found in the nucleus of a cell, are made up of DNA and proteins and carry genetic information.
What is a chromosome?
A catalyst affects the rate of a chemical reaction by lowering this energy barrier.
What is activation energy?
This term describes the rate of change of velocity over time.
What is acceleration?
The theory of evolution explains how species change over time and share a common ______.
What is an ancestor?
This is the process by which water changes from a liquid to a gas, often occurring at the surface of a body of water.
What is evaporation?
This is the type of allele that will mask the expression of a recessive allele in a heterozygous individual.
What is a dominant allele?
Elements in this group of the periodic table, like helium and neon, rarely react because they have a full outer electron shell.
What are noble gases?
According to Newton's Second Law, this equals mass multiplied by acceleration.
These are the preserved remains or traces of ancient organisms that provide evidence for evolution.
What are fossils?
This term describes the smallest unit of a chemical element that retains its properties.
What is an atom?