Question of the Week
Quarter 1

QoW #

  
1.1
  1. Explain using examples why precision and accuracy are important.
  2. Describe 2 different types of the measurement tools we use in science, explain for what they are used .

1.2

Sept 1
  1. Explain the purpose of scientific notation. What are some examples of when it might be used?
  2. Try to explain why so many paperclips fit into the cup of water in the class demonstration.

 

1.3

Sept 8

 

1.) Why is accurate data important when making scientific observations?

 
2.) Explain the difference between evidence and an inference.
Data Table 1
Distance walked
Time (sec
Distance (m)
0 0
5 10
10 20
15 30
20 40
25 50

3.) A class was collecting data to see how far a high school senior walked in the first 35 seconds after lunch break. The data in data table 1 gives their results.

a) which of these are the dependant variable? How can you tell?

1.4

Sept 15

Mrs Dillon Sept 18

 

 

1.) When you graphed your peanut data, what type of graph was necessary to display this data? Why is it necessary to use this type of graph?

2.) Name the numbered parts of the tortoise.


3.) Are the following inferences or evidence:
a) Mrs. Dillon has red hair.
b) Mr. Neff is aging nicely.
c) There are male and female tortoises on roof who like to eat lettuce.

 tort

1.5

Sept 22

Mrs. Dillon due Sept 25

1.) Explain why a diet soda can floats - use the words mass, volume and density in your explanation.
 
 
2.) What types of data will you be collecting on your tortoise?


3.) Some 8th grade students were told to walk at their regular speed for 90 seconds to see how far they traveled. This is the data they collected.

Student Distance (m ) Time (s)
#1 45 90
#2 65 90
#3 90 90
#4 110 90

a. What type of evidence is this?
b. What was the average distance walked?
 
c. What is the independent variable? The dependent variable?
 
d. Is this a reliable test? Why or why not? Explain your answer thinking about other variables that might be involved.