Do Now

Thur 9.11.14

Imagine that all of the birds around the school are dying. How might you investigate the problem? Write out a brief description of your investigation. Which stages of a scientific investigation are represented in your answer?

LWBAT:

•

Describe the processes scientists use for investigations

IOT:

•

Use scientific terms properly in written and oral form.

• • • • • • • • • •

Vocabulary to know

hypothesis prediction inference observation fact opinion theory (scientific) law (scientific) principle (scientific) mechanism (scientific)

Frayer Model

Do Now

Fri 9.12.14

1. Corey's Science Experiment a) Purpose: To determine the effect that completely burning a log has on the weight of the log and to calculate the amount of energy transferred in the process.

b) Corey selects a log for the project.

c) He completely burns the log in a controlled environment.

d) He collects all of the ashes and soot which remain after the burning is complete.

e) He weighs all of the remains and calculates the amount of weight and energy transferred in the burning.

What is wrong with the steps of Corey's experiment?

2. According to a scientific method, what should you do before you formulate a hypothesis? Does your answer confirm that a hypothesis an “educated guess”? Explain.

Do Now

Krusty Krabs Breath Mints

Mon 9.15.14

Mr. Krabs created a secret ingredient for a breath mint that he thinks will “cure” the bad breath people get from eating crabby patties at the Krusty Krab. He asked 100 customers with a history of bad breath to try his new breath mint. He

W r ite a definition for each:

had fifty customers (Group A) eat a breath mint after they finished eating a crabby patty. The other fifty (Group B) also received a breath mint after they finished the sandwich, Dependent Variable - however, it was just a regular breath mint and did not have the secret ingredient. Both groups were told that they were

Krusty Krabs Breath M ints

getting the breath mint that would cure their bad breath. Two from eating crabby patties at the Krusty Krab. He asked 100 customers with a history of bad breath to try his hours after eating the crabby patties, thirty customers in The other fifty (Group B) also received a breath mint after they finished the sandwich, however, it was just a Group A and ten customers in Group B reported having better breath than they normally had after eating crabby patties.

1.Which people are in the control group? 2. What is the independent variable?

3. What is the dependent variable?

4. What should Mr. Krabs’ conclusion be?

5. Why do you think 10 people in group B reported fresher breath? 4. What should Mr. Krabs’ conclusion be?

5. Why do you think 10 people in group B reported fresher breath?

SpongeBob Clean Pants

SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend Sandy told him that he should try using Clean-O detergent, a new laundry soap she found at Sail-Mart. SpongeBob made sure to wash one pair of pants in plain water and another pair in water with the Clean-O detergent. After washing both pairs of pants a total of three times, the pants washed in the Clean-O detergent did not appear to be any cleaner than the pants washed in plain water.

6. What was the problem SpongeBob wanted to investigate?

7. What is the independent variable?

8. What is the dependent variable?

9. What should Sponge Bob’s conclusion be?

T. Tr impe 2003 http://sciencespot.net/

• •

LWBAT:

Critique the elements of an experimental design Communicate results of investigations using multiple representations

IOT:

Use scientific terms properly in written and oral form.

Ms. Z wants to purchase new pens for School of the Future. She needs to know which type of pens lasts the longest. She asks the teachers if there is a type that they like the best. Ms. Baum loves ball-point pens, Ms. Glatzer prefers gel pens, and Mr. Lynch likes felt-tip pens. Ms. Baum thinks if she buys gel pens, then they will last the longest. She purchases the three types, and she gives each type to a group of 20 students to use and see how long they last. She writes down how many words each pen can write before it dies. The group with ball-point pens can write an average of 10,000 words before the pen dies; the gel pens write 5,000 words; and the felt-tip pens last for 11,000 words.

LWBAT identify the stages of this scientific method.

Step 1: State problem/ask question Ms. Baum wants to know which pens last the longest Step 2: Gather info Ms. Baum asks the other teachers which pens they like Step 3: Form hypothesis Ms. Baum says, “If I use gel pens, then they will last the longest.” Step 4: Perform experiment She purchases the 3 types of pens, gives them to students, and records the average number of words they can write Step 5: Analyze data Ball-point=10,000 words, gel pens=5,000 words, felt tip=11,000 words Step 6: Draw conclusion Ms. Z determines that the felt tip pens last the longest and her hypothesis is NOT supported. She rejects it.

9.15.14 EXIT TICKET Identify the following as one of the steps from this scientific method (write

E

for experiment,

P

for problem, H for hypothesis,

C

for conclusion, gather information)

D

for analyze data, and

GI

for 1._____ Ms. Parkhouse put a set of tiles in a dark cabinet and another set in the sunlight.

2._____ Mr. Friedman took measurements of the mold for a month and tried to make sense of the numbers.

3._____ Ms. Meagan wondered why mold always grew in only one corner of her classroom. She decided to investigate this. 4._____ Mr. Spring’s students looked at the data and decided the mold was growing in dark places. They decided to make a graph of the data. 5._____ Ms. McCleary suggested that the lack of light in the corner might be causing the mold to grow.

9/16/14 DO NOW

1. Abbey wants to determine how long it takes for a tadpole to develop into a frog. In what order should she do the following steps?

W.) Obtain frog eggs X.) Write a report on her findings Y.) Predict how long it will take for a tadpole to develop into a frog Z.) Observe the frog eggs every day and record changes that take place as the eggs hatch and the tadpoles develop.

2. Scientists followed a set of steps designed to detect metals found in different sources of drinking water. The steps are out of order. What is the correct order Step 1: Collect the water samples.

Step 2: Conclude which, if any, of the water samples have unsafe levels of metal.

Step 3: Measure the amounts of metals in each sample and record the amounts in a table.

Step 4: Predict whether or not water sources near a manufacturing plant are contaminated.

LWBAT:

Communicate results of investigations using multiple representations

IOT:

Use scientific terms properly in written and oral form.

A Scientific Method Review

Your science teacher gives groups of students 4 sets of cards/tiles. He wants to check if his students can demonstrate developing knowledge of the objectives he has taught so far by demonstrating their knowledge and ability in a group setting & to communicate results of investigations using multiple representations. Take a moment to look over the cards/tiles and determine in your group a procedure that you would use to apply to this activity. After writing the procedure in your science notebook, do it.

EXIT TICKET

1.Put the following steps of this scientific method in order: a.Gather Information b.Perform Experiment c.Draw Conclusion d.Form Hypothesis e.Analyze Data f.State the Problem 2.Why do scientists use a scientific method? Use complete sentences to answer this question.

LWBAT:

Distinguish between the scientific terms: hypothesis, inference, law, theory, principle, fact, & observation

IOT:

Use scientific terms properly in written and oral form.

1.

DO NOW 9.17.14

2.

3. A group of students conducted an experiment to measure the temperature of a chemical reaction. They mixed two chemicals in a beaker and used a thermometer to measure the temperature during the reaction. When they submitted their work, the teacher said that the temperature they recorded was not accurate. What should the students have done to make their data more accurate?

A. They should have conducted multiple trials to verify their first result.

B. They should have used two thermometers to measure the temperature.

C. They should have asked other groups what temperatures they recorded.

D. They should have added more of each chemical to make the reaction go faster.

9.18.14

LWBAT: Complete Constructed Response Questions with a score of 3 or better.

IOT: Assess their own knowledge of a scientific method

Science Rubric 4 3 Answering Task Complete response Almost complete response Content 100% (All) of the question is answered correctly. 75% (Most) of the parts of the question are answered correctly. Description Understanding Complete, clear, and error free. Uses key terms associated with the concept. Includes supporting evidence. Good response with minor content errors and omissions. Includes some supporting evidence and key terms. They demonstrate a clear and strong understanding of the scientific concept, and are able to apply it. Mostly clear except for minor misconceptions and/or misstatements of facts. 2 Incomplete response 1 Minimal response 50% (Some) of the parts of the question are answered correctly. Fair response that contains multiple omissions and errors. Little supporting evidence and key terms are used. Contains some misstatements of facts, or tends toward simplistic lists that lack necessary descriptions. 25% (Minimal) of the parts of the question are answered correctly. Student did more than restate the question. Poor response that contains almost no correct information. There is no supporting evidence. Response shows minimal understanding 0 Incorrect response Student restated question/prompt. Question is not addressed. Response is irrelevant and/or incorrect. Answer does not show understanding.

9.19.14

DO NOW

1. Name 10 tools used in a science laboratory.

2. What science tool would you use to measure the following: 1. length 2. mass 3. volume 4. temperature 5. density

LWBAT:

Demonstrate the ability to safely & correctly use scientific equipment

IOT:

Describe materials using precise quantitative and qualitative skills based on observations

What is the volume in the graduated cylinder?

LWBAT:

Apply scientific thinking, processes, tools, and technologies in the study of biology

IOT:

Describe materials using precise quantitative and qualitative skills based on observations

The study of biology requires an understanding of many technical terms. Sometimes you can find the meaning of an unfamiliar term by looking at its parts. In this activity you will analyze such parts to help you understand many of the terms you will encounter in biology. Many words have prefixes and suffixes that provide clues to their meanings. The following table contains a list of prefixes and suffixes that are often part of biological terms. Look at the table and study it carefully.

Use the prefixes and suffixes to form 5 biology terms.

Example Chloro - green and phyll – leaf = green leaf (substance found in)

DO NOW 9/22/14

Distinguish between the scientific terms: inference, hypothesis, fact, law, observation, principle and theory.

Distinguish between the scientific terms: inference, hypothesis, fact, law, observation, principle and theory.

An inference is like saying: All A's = B. and all B's = C. Therefore all A's = C. A hypothesis is just an idea that is testable and can be supported or rejected by experimental evidence. A fact is a hypothesis that has been so thoroughly tested and accepted that it is assumed to be true. A scientific law is a statement that shows relationship between things. Ex: Gravity

An observation consists of receiving knowledge of the outside world through our senses, or recording information using scientific tools and instruments. Any data recorded during an experiment can be called an observation.

A scientific principle is a statement that explain the 'why' and 'how' of various phenomena.

A theory is constructed from observational data to explain that data, and to be able to predict future outcomes.