Nature of Science
Explain the difference between repetition and replication.
Repetition: Someone performs multiple trials of an experiment
Replication: Someone different performs the same experiment to test for accuracy
The property of matter that has an attraction between two poles that are opposites, or repulsion between two similar poles.
Magnetism
The amount of matter in an object
Mass
What is the equation to find the density of an object?
Density= Mass/Volume
What can give you the power?
STEM
Explain the difference between an independent variable and a dependent variable.
Independent: The variable directly changed, the question is based around this.
Dependent: What changes as a result to a change in the Independent Variable - what is measured.
The ability to conduct an electrical current, dissolve a substance in water, and melt are considered what?
Physical Properties
How is weight different from mass?
Weight is based on gravity and mass
Derek mixed two liquids, one dark and one clear. After letting it settle for a moment the dark one sinks to the bottom and the light one sits on top. Why?
The lighter liquid is less dense, the darker liquid is more dense
The ___________ Table
Periodic
Explain the difference between a scientific theory and a scientific law.
Theory: Explains why or how a phenomena occurs
Law: Explains what will happen in nature
A property of matter that allows heat or electricity to pass through an object
conductivity
Which of the following is true about weight?
A. Objects on the same planet have the same weight
B. Weight depends on mass and location
C. Only objects on the surface of a planet have weight
D. All objects have weight no matter where they are located.
B.
David has two iron blocks. One of them has a mass of 100 grams and the other has a mass of 400 grams. Which of the following will be the same for both blocks?
Mass
Weight
Volume
Density
Density - When made of the same material the density does not change.
Body System - Top Right
Muscular
Samuel conducts an experiment. He makes many observations and measurements, recording each carefully. At the conclusion of the experiment the data does not support his hypothesis. What should he do?
A. Change his hypothesis so it matches the data
B. Change the data so it supports his hypothesis
C. Throw out his data and restart the experiment
D. Report his observations and conclusions, stating that it did not support the hypothesis
D. Report his observations and conclusions, stating that it did not support the hypothesis
A property of matter that allows a substance to be dissolved into another substance such as water.
Solubility
Which of the following will change an objects weight and not it's mass?
A. Breaking it
B. Compressing it
C. Putting it in a box
D. Placing it on another planet
D.
Copper has a density of 9 g/cm3. You have a piece of copper that has a mass of 27 grams. What is the volume of your piece of copper?
V = M/D
3cm3Finish the sentence "Give me _______"
Space
Erika conducts an experiment. She does background research, forms her hypothesis, conducts the experiment and carefully collects the data. After analyzing the data, she reports her conclusions and states that her hypothesis was wrong.
What mistake did Erika make?
This physical property remains the same regardless of the items mass that is present.
Density
One hundred milliliters of a liquid is completely transferred from a larger cylinder (labelled A) to a longer and more slender cylinder (labelled B). Which of the following would be true?
A. Less mass and more volume
B. Less mass and the same volume
C. The same mass and greater volume
D. The same mass and the same volume
D.
Ron carried out an experiment to calculate the density of a small rock. First he placed the rock in a graduated cylinder filled half way with water and measured the change in the water level. What property of matter will Ron need to measure next in order to calculate the density of the rock?
Mass
Complete the sentence:
"Finish _______ ______ ______"
Finish what you start