The Scientific method
What is Hypothesis?
A testable statement between 2 or more variables or a proposed explanation.
Amy rode her bike for 45 miles in 3 hours. Find her speed.
15 MPH
What do you breathe in and breathe out?
You breathe in oxygen and breathe out carbon dioxide.
What is a cell
A cell is the smallest unit that can carry out all the process of life.
What galaxy do we live in?
We live in the Milky Way.
What is a controlled experiment?
An experiment in which only one variable is changed
What is the formula for speed?
S=d/t
What does the nervous system do?
What are the two types of cells
The two types of cells are Prokaryotic and Eukaryotic cells
When does a spring tide occur?
The spring tide occurs during the new and full moon.
What is a measured variable?
The data that is collected in the experiment.
A man walks 20 km in 4 hours. Find his speed
5 KM/HR
What does the respiratory system do?
Where can you find ribosomes in an animal cell?
You can find ribosomes free floating in the cytoplasm.
What is another name for mitochondria.
The power house
How many things are changed in a changed variable?
ONLY One
What do you use to measure mass?
A scale or balance
What is the purpose of the nervous system?
To communicate messages to and from the brain and body.
What is the nucleus filled with
The nucleus is filled with nucleoplasm
How do you find the atomic mass?
Mass number= protons + neutrons
How many trials should a good experiment have?
Three or more.
What is the basic metric (SI) to measure mass?
Gram
How many elements account for 23% of a human's total body mass?
Carbon
Name at least three of the plant cells
Cell membrane, cell wall, cell of neighboring ceu, nucleolus, nucleus, smooth ER, rough ER, ribosomes, cytoplasm, chloroplast, mitochondria, central vacuole, peroxisome, and the Golgi apparatus.
What is the difference between mass and weight.
Mass is how much space an object takes. Weight is how heavy an object is.