Cells and Genetics
This structure controls what enters and leaves the cell.
Cell membrane
This layer of Earth is made of solid rock and is the outermost layer.
Crust
A push or pull on an object is called this.
A force
The energy of motion is called this.
Kinetic energy
Anything that has mass and takes up space is called this.
Matter
Traits are passed from parents to offspring through these units of heredity.
Genes
The movement of tectonic plates causes these major events.
Earthquakes (and volcanoes)
An object at rest will stay at rest unless acted on by this.
An unbalanced force
Stored energy is called this.
Potential energy
This is the smallest unit of an element.
An atom
An organism with two different alleles for a trait is called this.
Heterozygous
Fossils found on different continents provide evidence for this theory.
Continental drift
Speed with direction is called this.
Velocity
Energy cannot be created or destroyed - this is known as this law.
The Law of Conservation of Energy
A change that forms a new substance is called this.
A chemical change
This type of reproduction produces genetically identical offspring.
Asexual reproduction
This process breaks down rock into smaller pieces without changing its composition.
Weathering
This force pulls objects toward Earth.
Gravity
This type of energy transfers occurs through direct contact.
Conduction
The measure of how tightly packed matter is called this.
Density
If a trait is masked by another allele, it is described as this.
Recessive
Energy from the Sun drives this repeating movement of water on Earth.
Water cycle.
According to Newton's Third Law, for every action there is...
An equal and opposite reaction
Energy transferred by waves, even through empty space, is called this.
Radiation
When atoms bond and form new substances, they undergo this.
A chemical reaction