Science Exam Study Guide
What are the six parts of the scientific method (in order)? Observation Hypothesis Experiment Data collection Conclusion Retest
What are the 3 types of variables in an experiment? Control Independent Dependent
What is a procedure to test the hypothesis? Experiment
Which one of the steps is gathered through your senses? Observation
In our floating cans experiment: What was the control variable? The can of coke What type of data did we collect? Qualitative What was the independent variable? The different cans of soda
Who was the man who first studied cells? Robert Hooke
What is a clear, jelly-like substance that holds the organelles in the cell? Cytoplasm
What is the stiff outer layer that gives plant cells their shape? Cell Wall
What is in charge of making protein? Ribosomes
What surrounds and protects the nucleus? Nuclear Membrane
What is in charge of what enters and leaves the cell? Cell Membrane
What is found only in plant cells and allows the plant to make food? Chloroplast
What is the control center of a cell? Nucleus
Define these words: Tissue – specialized cells with similar structure and function. Organ – a structure made up of at least two types of tissues that work together to perform a specific job. System – a group of organs that work together to perform a specific function.
What are the jobs of the digestive system? To digest food To transfer digested nutrients into the blood To absorb water
List the steps of how tissues help your hand move when you touch a hot stove. Nerves in your hand send a message to the spinal cord. A reflex takes place when nerves in the spinal cord send signals to muscles in your hand that cause you to move it off the stove. Then, the nerves send a message up the spinal cord, where the brain receives it.
What kind of tissue is blood? Connective tissue
What kind of tissue gives an organism the ability to move? Muscle tissue
What kind of tissue are villi? Epithelial tissue
What kind of tissue gives an organism the ability to respond to stimuli in the environment Nerve tissue
Describe the levels of organization from cells to organ systems Cells make up tissue, tissue make up organs, and organs make up organ systems.
What are the four kinds of tissues? Epithelial Connective Muscle Nerve
What do organs have in common? They are all made up of the four kinds of tissue.
Why is the heart made up mostly of muscle tissue? The heart requires muscle tissue to keep beating.
Your test will be on Monday. Your 2 assignments are: 1. complete the packet 2. study your study guide