Measuring
What units do you measure temperature in?
Degrees C
What is a hypothesis?
a testable prediction
example: If we increase the temperature of the water, the flowers will bloom slower
What is the independent and dependent variable:
If we increase the height of the ramp, the toy car will increase in speed
Independent - height of the ramp
Dependent - speed of the toy car
calculate the average of the following:
T1: 5, T2:6, T3: 4
Average = 5
RANDOM RIDDLE:
If you throw a black rock in the Red Sea, what does it become?
wet
What is the independent and dependent variable:
If you increase the temperature on the water, the salt will dissolve faster
Independent - Temperature of the water (degrees C)
Dependent - How fast the salt dissolves (seconds)
Calculate the average of the following: (1 decimal)
T1: 23, T2: 27, T3: 24
Average = 24.6
What units do you measure volume in?
L, ml
What is the independent and dependent variable:
If a plant receives more sunlight, it will grow taller
Independent - How much sunlight a plant gets
Dependent - how tall the plant grows (cm)
Calculate the average of the following: (1 decimal)
T1: 87.3, T2: 93.8, T3: 90.4
Average = 90.5
What units do you measure mass in?
mg, g, kg
RANDOM RIDDLE:
What is the quickest way to double your money?
What is the independent and dependent variable:
If more baking soda is added to vinegar, then the reaction will produce more gas
Independent - the amount of baking soda (g)
Dependent - how much gas is produced (ml)
Calculate the average of the following: (2 decimal)
T1: 65.45, T2: 71.43, T3: 69.67
Average = 68.95
What units do you measure time in?
milliseconds, seconds, minutes, hours
What does doing multiple trials in an investigation help with?
makes the results more trustworthy and reliable
What is the independent and dependent variable:
Students who eat breakfast in the morning perform better on tests than students who don't.
Independent - Whether students eat breakfast or not
Dependent - the student scores on test
Calculate the average of the following: (2 decimal)
T1: 49.53, T2: 52.92, T3: 48.65, T4: 49.71, T5: 50.42
Average = 50.25