cells
this is the control center of the cell
what is the nucleus?
What is force?
A push or pull
an educated guess to a scientific problem
what is a hypothesis?
these blood cells fight disease
White blood cells
this layer of the atmosphere is weather located
what is the troposphere?
these organelles store food, waste and water needed by the cell
what are vacuoles?
the force that pulls objects toward the center of the Earth
what is gravity?
The first step after observation in the scientific method
what is ask a question?
this dome-shaped muscle that plays an important role in breathing
what is the diaphragm?
sediment being laid down in a new location
What is deposition?
This is the jellylike substance found in the cell. The organelles float around in it
what is cytoplasm?
When you jump on a trampoline, this type of energy is stored in the stretched springs
potential energy
the manipulated variable and is changed by the scientist
what is the independent variable?
The structure that moves air from the nose to the lungs, and is also called the windpipe.
what is the trachea?
The breaking down of rocks into smaller particles such as sand and pebbles
what is weathering?
This organelle produces energy needed by the cell
what is mitochondria?
an object at rest stays at rest, and an object in motion stays in motion, unless acted upon by an external force
What is Newton's first law
When you share your finding from an experiment, and tell whether your hypothesis was proven or disproven
what is the conclusion?
this component of blood is 90 percent water
what is plasma?
plants get energy through this process
what is Photosynthesis?
This organelle is found in plant cells and is the site where photosynthesis occurs_
what is the chloroplasts?
property of matter describes an object's resistance to changes in its state of motion?
what is inertia?
A simple model used to test a design
what is a prototype?
this is the wave of muscle contractions that push food through the esophagus and into the stomach.
What is peristalsis?
all the factors that the experimenter attempts to keep the same.
what are constants?