DO NOW Directions: Fill in your Weekly Do Now sheet, then answer the prompt.

Objective Students will be able to distinguish between an observation and an inference.

Do Now Prompt

In the picture to the right….

What do you OBSERVE (see)

and what can you INFER (predict)

Is happening?

Sept. 3rd, 2013

Cedillo

ESSENTIAL QUESTION:What is the difference between an observation and an inference?

AGENDA:-Use observations and inferences to create a model of the inside of the “Mystery Box”-Define observation and inference-Learn how to create a concept map

Sept4th

Mystery Box – Pg. 7OBSERVATIONS INFERENCE

-RECORD WHAT YOU OBSERVE IN THIS BOX

-USE YOUR OBSERVATIONS TO CREATE A DRAWING OF WHAT YOU THINK THE INSIDE LOOKS LIKE

ESSENTIAL QUESTION:What is the difference between an observation and an inference?

OBJECTIVE:-Distinguish between an observation and an inference.

DO NOWObjective SWBAT distinguish between a descriptive, comparative, and experimental

investigations.

Prompt

Using observations, describe your teacher. What inferences can you make about your teacher from your observations?

Reminders: --Enter quietly--Sharpen pencils and have materials out and ready *BEFORE* bell rings--Be in seat working on Do Now with voice level 0 when bell rings--Make sure homework is written in agenda for this week.

Today’s AgendaESSENTIAL QUESTION:What is the difference between a descriptive, comparative, and experimental investigation?

Agenda:-Use observations and inferences to conduct and descriptive investigation of Turk’s Cap.-Conduct a comparative investigation of Turk’s Cap and the Siberian Iris.-Look at an example of an experimental investigation-Fill out a Mind Map to organize information about scientific investigations.

Descriptive Investigation

Dr. Damian Elias: http://nature.berkeley.edu/eliaslab/#

How do animals communicate?

Descriptive Investigation

Dr. Damian Elias: http://nature.berkeley.edu/eliaslab/#Scientists from the Elias Lab use descriptive investigations to understand how jumping spiders communicate.

Jumping Spider Mating Dance

Descriptive Investigation

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Comparative InvestigationsDr. Larry J. Young: http://research.yerkes.emory.edu/Young/larry.html

What controls behavior?

Comparative

Dr. Larry J. Young: http://research.yerkes.emory.edu/Young/larry.html

Prairie Voles

Monogamous: Only have 1 partner

Vs.

Meadow Voles

Polygamous: have many partners

COMPARATIVE Investigation

TURK’S CAP SIBERIAN IRIS

TURK’S CAP

TURK’S CAP

SIBERIAN IRIS

SIBERIAN IRIS

Mind Maps

In science, there are three types of investigations

Descriptive Comparative Experimental

Can be

Describe the similarities and

differences between two or more things.

Make observations of two or more things using 5 senses and

scientific tools.

Will

Create your own Investigation

• I will assign your table either a descriptive or comparative investigation.

• You must come up with a question you would like to answer in your investigation.

• You must come up with the way your will carry out your investigation.

Experimental Investigations

Dr. Rachel Paige: http://research.yerkes.emory.edu/Young/larry.html

What are the risks when finding a mate?

Experimental

Male Simple Call Male Complex Call

Female Frog Bat

Mind Maps

In science, there are three types of investigations

Descriptive Comparative Experimental

Can be

Include a hypothesis and prediction

Observe the effect of the independent variable on the

dependent variable

Will

DO NOW (Pg. 6 in journal)Objective SWBAT distinguish between a descriptive, comparative, and experimental

investigations.

Prompt

What is the difference between a descriptive, comparative, and experimental investigation?

Reminders: --Homework due today. Make a pile in the aisle.

ESSENTIAL QUESTION:How do you design an experimental investigation?OBJECTIVES:-Design an experimental investigation to test a question about Turk’s Cap and the Siberian Iris.

Experiments

Testable Question: Do plants grow taller under a green, red, blue, or natural sunlight?

Can be turned into a hypothesis…

IF_______________________, then

______________________________.

Hypothesis• A prediction that answers the question in an

experiment.

• Testable Question: Do plants grow taller under a green, red, blue, or natural sunlight?

Can be turned into a hypothesis…

If I place plants under green, red, blue, and natural sunlight , then the plant under the red light will grow faster.

Variables and Controls

Independent Variable: Something the scientist changes during the investigation.

Dependent Variable: Something that changes and can be measured as a result of the independent variable.

Control/Constant: Something that stays the same in an investigation.

Variables

Testable Question: Do plants grow taller under a green, red, blue, or natural sunlight?

The plants height is the ______________________

The color of the light is the ___________________

Design your own experiment

• With your shoulder partner:– Come up with a question that can be tested– Form a hypothesis that gives a prediction that

answers that question– Identify variables and control– Be prepared to talk about how you would set up

your experiment, and what kind of data you would collect.

If I put a plant under a blue light and another under a red light, then then plant under the blue light will grow faster.

The type of plantThe color of light

The plant’s height

Plant A: 6 cm

Plant B: 12 cm

Descriptive, Comparative, or Experimental?

• On your dry erase boards, choose whether the experiment read by the teacher is a descriptive, comparative, or experimental investigation.

Descriptive vs. Comparative vs. Experimental

Use your cards to identify the type of investigation

Descriptive Comparative Experimental

Descriptive vs. Comparative

Jane Goodall began studying Chimpanzee’s in the 1960’s. Jane moved to Africa and began making close observations of Chimpanzees in the wild and in captivity. Because of her investigations we now know that chimpanzees are meat eaters, use tools, and hunt Capuchin monkeys for food.

Descriptive vs. Comparative

In the 1670’s Antony van Leeuwenhoek was the first person to look at living cells under a microscope. Leeuwenhoek viewed pond water under a microscope and discovered a world of small single celled creatures.

Descriptive vs. Comparative

Jane and Sarah are involved in the student health club. They are concerned about rumors that girls are concerned about their weight. They are wondering if this is a problem with girls at every grade. Both girls make careful observations in the cafeteria during 6th and 7th grade lunch. The girls put their finding together so they can present it to their teacher.

Descriptive vs. Comparative

Max wants to help plant the school garden. He is interested in planting species of plants and flowers that will attract birds and butterflies. Max decided to go to the local city garden. Max made careful note of the animals that visited the gardens. When he was finished observing he recorded the names of the plant species that were planted there.

Descriptive vs. Comparative

Jason is on the track team, and he wants to run faster. While watching TV, he sees two different commercials for energy drinks that promise to give you more energy. He times himself running 1 mile on Monday without any energy drink. Then he times himself running 1 mile after drinking 16oz of Red-Bull one week later. Finally, he times himself running 1 mile after drinking 16oz of Monster energy drink a week later. After analyzing the data, he infers that energy drinks do not make him run faster.

Descriptive vs. Comparative

Mark works for the National Forest Service. He is concerned about the effects of forest fires on the species plants and animals in the mountains where he works. Mark decided to visit the north side of Sleeping Ute Mountain where fires were very rare. He recorded observations of the plants and animals. Mark then traveled to the south side of the mountain that had recently experienced a wild fire (cause by lightening). Mark recorded his observations of the plants and animals there.