Scientific Processes Unit Study Guide
1. Using one or more of your senses to gather information is called______________________________________.
2. Explaining or interpreting the things you observe based on reasoning from what you already know is called
______________________________.
3. List the seven steps of the scientific method in order.____________________________________________________
_______________________________________________________________________________________________
4. Once you’ve made observations and asked questions, what step of the scientific method comes next? ____________
_______________________________________________________________________________________________
5. How should a scientist analyze their data?_____________________________________________________________
6. What is the purpose of the conclusion?________________________________________________________________
7. What is the advantage of have the International System of Units?___________________________________________
8. What are the SI units for measuring length, mass, and volume (in order)?_____________________________________
9. What is the SI unit for temperature that we most often use?_______________________________________________
10. Which SI unit would you use to measure the amount of water in a bathtub?__________________________________
11. Which SI unit would you use to measure the length of a pen?______________________________________________
12. Which SI unit would you use to weigh a can of green beans?______________________________________________
13. Which SI unit would you use to measure the length of a bacterial cell?______________________________________
14. Which SI unit would you use to measure the length of York Street?________________________________________
15. What is the formula for density?____________________________________________________________________
16. What is the density of an object that has a mass of 20 grams and a volume of 4 milliliters? You must write you answer
in the correct units!_______________________________________________________________________________
17. What is the first thing you should do if an accident occurs in your classroom?_________________________________
18. Mass and weight are different because weight measures the ____________________________________ of an object.
19. What lab tool would you use to measure the weight of an orange?__________________________________________
20. What is measured when using a graduated cylinder?_____________________________________________________
21. What is measured when using a balance?______________________________________________________________
22. The amount of space an object takes up is its ________________________________________.
23. What is the formula for calculating the volume of a rectangular solid?_______________________________________
24. If a shoe box measures 2cm high, 3cm wide, and 10 cm long, what is its volume?______________________________
25. What units would you use to measure the volume of a cardboard box?______________________________________
26. What are qualitative observations?__________________________________________________________________
27. What are quantitative observations?_________________________________________________________________
28. Give an example of a qualitative observation about yourself.______________________________________________
29. Give an example of a quantitative observation about yourself.____________________________________________
30. What is the independent variable on this graph?_______________________________________________________
31. What is the dependent variable on this graph?_________________________________________________________
32. What is the trend on this graph?____________________________________________________________________
33. You want to test to see if Crest Whitening toothpaste whitens your teeth better than regular Crest toothpaste. A
scientist finds 20 people and separates them into two groups. Each group has equal amounts of males and females.
Group A receives the Crest Whitening toothpaste while group B receives the regular Crest toothpaste. The people in
the group use the toothpaste daily for one month. The scientist determines if the cream works by recording how
many shades whiter the subjects’ teeth are.
A.
What is the independent variable?____________________________________________________________
B. What is the dependent variable?______________________________________________________________
C. What is the control?________________________________________________________________________
D. List a controlled variable._____________________________________________________________________
34. Devin had the measles and had to stay inside even though he didn't feel very bad at all. He decided to make a cake to
surprise his mother. The recipe said he needed 4.2 deciliters of milk. How many liters of milk did he
need?______________________________________________________________________________________
35. We are driving to Las Vegas. The sign says that it is one hundred forty-five hectometers to Las Vegas. How many
meters is it to Las Vegas?_______________________________________________________________________
36. Seth’s dog, Gretchen, needed some Frontline medicine from the vet. The cost of the Frontline medicine is based on
the weight of the dog. The vet told Seth if the dog weighs less than 20 kilograms then the medicine will cost $10.00.
If the dog weighs more than 20 kilograms then the medicine will cost $15.00. Gretchen weighs 77,000 decigrams.
A.
How much does Gretchen weigh in kilograms?__________________________________________________
B. How much will Seth have to pay for the Frontline medicine?_______________________________________
37. Identify the following lab tools.