1. The Practice of Science TYPES OF SCIENTIFIC INVESTIGATIONS

2. Bellwork: What do you know about investigations?
You are in the science Lab and your friend tells you to make sure when you measure to pay attention to the meniscus. Write 3 or 4 sentences describing what a meniscus is, why you have to pay attention, and describe what piece of laboratory equipment you are using and the units you will put after your measurements.
t/f

3. EQ: What are types and parts of Scientific Investigations?
Objective: I can describe the different kinds of scientific investigations because I can identify which kind is being used.
SC.7.N.1.5

4. What are some types of scientific investigations?
EXPERIMENTS
OBSERVATIONS
an organized procedure to study something under controlled conditions
Include:
FIELD STUDY
IN THE LAB
MODELS
– information obtained by using the senses
May lead to a scientific experiment.

5. What are Types of experiments: Field Study
When do the birds migrate to and from our local park?
A scientific study in which the subjects are observed in their natural habitat without changing, harming, or altering the setting or subjects.

6. 2. Controlled Experiment in the lab
How does the amount of water affect how quickly a surface heats up?
A lab investigation in which all variables are kept the same except for one that is being changed- independent or manipulated
and one that is measured (dependent or responding variable).

7. 3. Model A simplified representation of a system.
How can the relative positions of the Earth, Moon, and Sun explain different kinds of eclipses?
A simplified representation of a system.
Useful for studying systems that are
too big,
too small,
too complex
too dangerous
to study directly.

8. Match each question to the best type of investigation.
Investigation Question
Type of Investigation
1) How does applying different forces to the Earth affect the type of landforms that are created?
2 How does the temperature of the water affect how tall the tomato plant grows?
3 How does the air pressure change with different types of weather?
How does the distance from the lake affect the types of plants and animals we see?
5. How does the time of month affect the appearance of the moon
Field Study
Controlled Experiment
Model
observation

9. What are some parts of scientific investigations?
Hypothesis –
a testable idea or explanation that leads to an investigation
Often in the form of an IF -> THEN, BECAUSE
If I paint my house white, then my air conditioning bill will be lower because white absorbs less heat.

10. 2. variables

11. Label the independent, dependent and controlled variables

12. What are the parts of a scientific investigation 3. Data
The numbers and information gathered by experimentation that can be analyzed

13. What are some scientific methods
Scientists may follow many paths to conduct an investigation. One path a scientist might follow:

14. What are some characteristics of a good investigation?
Repetition
Replication
The same scientist does many trials and gets the same results – many trials
Other scientists perform the same investigation and get the same results

15. Identify the independent and dependent variables in the following investigations:

16. Students of different ages were given the same puzzle to put together
Students of different ages were given the same puzzle to put together. They were timed to see how long it took to finish the puzzle.

17. Identify the variables in this investigation: Independent: Dependent: Conrolled: .

18. What was the independent variable?
Ages of the students
Different ages were tested by the scientist

19. What was the dependent variable?
The time it to put the puzzle together
The time was observed and measured by the scientist

20. What was a controlled variable?
Same puzzle
All of the participants were tested with the same puzzle.
It would not have been a fair test if some had an easy 30 piece puzzle and some had a harder 500 piece puzzle.

21. Hw: complete sponge bob variables ws

22. Bellwork:
Create a Venn Diagram Comparing and Contrasting Field work and experiment in a lab setting. Use the following words:
A. very controlled, B. cannot be controlled, C. weather may be a factor, D. type of scientific investigation, E. very sterile, F. scientist can change conditions, G. obtain info using senses
You want to investigate how plant height is affected by the hours of sunlight it receives.
What is the independent variable?
What is the dependent variable?
Classify each of the following as repetition or replication:
4. You go to the park 5 times and take notes on the birds that you see.
Your friend goes to the same park and takes notes on the birds that he sees
List some parts of the scientific method.

23. very controlled, cannot be controlled, weather may be a factor, type of scientific investigation, very sterile, scientist can change conditions, obtain info using senses

24. Mythbusters: Are elephants afraid of Mice?

25. Exit: