Show:
Graphing
Calculating Density
Density Relationships
Scientific Method
Extras
100
Which variable goes on the x axis of a graph?
What is the independent variable.
100
What is the formula to calculate density?
What is mass/volume.
100
If you increase volume you decrease ___________.
What is density.
100
Donna thinks that the pendulum will move faster when the weight is lowered, and wants to test her idea. Donna gets a stopwatch and measures the time it takes for the pendulum to swing twenty times when the weight is moved to its lowest position. Donna begins to move the pendulum up by 1 cm and continues to measure the time for twenty swings of the pendulum. What is the dependent variable in this scenario?
What is the time it takes fro the pendulum to swing twenty times.
100
Which type of water is more dense, hot or cold water?
What is cold.
200
If you have an x axis range of 55 and 30 boxes available to you on the x axis, what should you number your axis by?
55/30 = 1.833 round up to 2.
200
What would be the formula to calculate mass given a density and a volume?
What is density x volume.
200
As you __________ mass you increase density.
What is increase.
200
A scientist testing the affects of a chemical on apple yield, sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. Which of the following is the independent (manipulated) variable in the experiment?
What is whether or not the orchard is sprayed.
200
What is the dip in the water of graduated cylinder called?
What is the meniscus.
300
If you have a y axis range of 150 and 80 boxes available to you on the y axis, what should you number your axis by?
150/80 = 1.875 round up to 2.
300
What is the density of a piece of wood that has a mass of 25.0 grams and a volume of 29.4 cm3?
What is 0.85 g/cm3.
300
A cup of gold colored metal beads was measured to have a mass 425 grams. By water displacement, the volume of the beads was calculated to be 48.0 cm3. Given the following densities, identify the metal. Gold: 19.3 g/mL Copper: 8.86 g/mL Bronze: 9.87 g/mL
What is copper. 425g / 48 cm3 = 8.86 g/cm3
300
A scientist plants two rows of corn for experimentation. She puts fertilizer on row 1 but does not put fertilizer on row 2. Both rows receive the same amount of water and light intensity. She checks the growth of the corn over the course of 5 months. What is a constant in this experiment.
What is amount of water, light or growth time. (Any one answer is acceptable.)
300
What is the process of determining the volume of an irregular solid called? (Think about the density of solids lab.)
What is water displacement.
400
Bismuth has a density of 9.80 g/cm3. What is the mass of 4.78 cm3 of Bi?
What is 46.84g.
400
An unknown liquid has a density of 1.34 g/cm3. What will happen when the liquid is carefully dropped onto water. Justify your answer.
What is sink. It has a higher density than water (1 g/cm3).
400
In a controlled experiment, the variable that is changed to test the hypothesis is called the –
What is the independent variable.
400
What is the property of water the causes it to stick to the face of the penny?
What is adhesion.
500
How do you calculate the slope of a line?
What is rise/run.
500
The density of aluminum is 2.70 g/mL. If the mass of a piece of aluminum is 244 grams, what is the volume of the aluminum?
What is 90.37 mL.
500
An irregular object with a mass of 18 g is placed in a graduated cylinder of 13 mL of water. Afterwards the graduated cylinder reads 31 mL. Calculate the density of the object.
What is 1.0 g/mL.
500
A student wants to conduct an experiment to find out how pulse rates changes as the length of time spent exercising increases. The dependent variable will be _____.
What is pulse rate.
500
Riddle: What falls but never breaks?
What is night.