This organelle let's some things in but not all because it is semi-permeable.
What is the cell membrane.
100
Using one or more of your senses to gather information
What is observing.
100
Light passes through this transparent covering of the eye.
What is the cornea.
100
Most of the cell's energy is produced here in this ROD shaped organelle.
What is the mitochondrion.
100
A part of the cell that stores food, waste, and water.
What is a vacuole.
200
Proteins are made here.
What are ribosomes.
200
The process scientists use to develop research where a question is posed, hypothesis developed, research, experiment developed, data collected, conclusions made, and published
What is scientific inquiry.
200
Because of the way in which the lens of the eye bends light rays, the image produced by the lens is...
What is upside-down.
200
A layer of cells that line the inside of the eye and transform light into signals.
What is the retina.
200
These organelles are only found in plant cells.
What are chloroplasts and cell walls.
300
Substance that maintains the shape of the cell.
What is the cytoplasm.
300
A possible explanation to a problem that is testable.
What is a hypothesis.
300
The angle of reflection equals the angle of incidence.
What is the law of reflection.
300
This sends signals to the brain.
What is the optic nerve.
300
The process by which water moves across the cell membrane.
What is osmosis.
400
These two organelles ship proteins to other parts of the cell.
What are the golgi body and endoplasmic reticulum.
400
Observations that involve everything except numbers, amounts, or quantities.
What are qualitative observations.
400
Limes appear green because of this.
What is reflect green light.
400
The colored ring of muscle that contracts and expands to change the size of the pupil.
What is the iris.
400
The main difference between unicellular and multicellular organisms.
What are specialized cells.
500
These ROUND green organelles use the sun to convert energy.
What are chloroplasts.
500
Molecules move from an area of High concentration to a low concentration.
What is diffusion.
500
This color has the longest wavelength and shortest frequency.
What is red.
500
Curved structure that refracts light.
What is the lens.
500
The most basic component of any organism is the cell.
All cells originate from other cells.
All living things are made of one or more cells.