Layers of the Atmosphere
This is the lowest layer of the atmosphere where weather occurs
What is the troposphere?
The basic unit of heredity, made of DNA, that codes for a trait.
What is a gene?
The process by which plants make their own food using sunlight.
What is photosynthesis?
Light travels in these straight paths.
What are rays?
The first step in the scientific method, often based on observation.
What is asking a question?
This layer contains the ozone layer, which protects Earth from harmful UV radiation.
What is the stratosphere?
The physical appearance or observable traits of an organism.
What is phenotype?
The organelle in a cell that contains genetic material and controls cell activities.
What is the nucleus?
The bending of light as it passes from one medium to another.
What is refraction?
A testable prediction in the scientific method.
What is a hypothesis?
This layer is above the mesosphere and is where the Northern and Southern Lights are visible.
What is the thermosphere?
The genetic makeup of an organism, represented by letters like Aa or BB.
What is genotype?
The classification level that comes just above species.
What is genus?
The bouncing of light off a surface.
What is reflection?
The part of an experiment that is changed to test the hypothesis.
What is the independent variable?
This is the coldest layer of the atmosphere.
Answer: What is the mesosphere?
What is the mesosphere?
A diagram used to predict the probability of offspring inheriting certain traits.
What is a Punnett square?
The system of organs that transports blood and nutrients throughout the body.
What is the circulatory system?
The color of an object is determined by this property of light.
What is wavelength or the color of the reflected light?
The variable that is measured or observed in an experiment.
What is the dependent variable?
This layer is the outermost layer of Earth’s atmosphere where it gradually fades into space.
What is the exosphere?
This type of reproduction involves two parents and results in genetic variation.
What is sexual reproduction?
Organisms that break down dead material and recycle nutrients back into the ecosystem.
What are decomposers?
When light waves change direction after hitting a rough surface, it scatters in many directions.
What is diffuse reflection?
A group or condition in an experiment that is kept the same to ensure a fair test.
What is a control group?