Do Now 9-9-15

We calculated that it would take 4,800 trees to treat 60,000 cancer patients with paclitaxel. How can we save the trees and the people?

Do Now - Daily Materials

1. Describe three skills people use to conduct scientific investigations. Why are these skills necessary?

2. How can the hypothesis statements below be improved. Write down your updated hypothesis statement.a) If I sleep at least 6 hours then I will do better

on the test.b) If the TV is on in your room it will take longer

to fall asleep.

Homework and Announcements

• Due: Textbook pages 7-11

Homework

• Foil Boat Designs• Write the introduction / background

information for your lab report

Title: Science SkillsL.O. SWBAT describe what skills scientists need to explore the Natural World.

by Anuar Patjane

• way to learn about the natural world

ObservingClassifyingModelsInferringPredictingAnalyzingScientific investigation

Think Pair ShareClose your notebook…

What are some of the skills scientists need to learn about the world around them?

(We mentioned 7)

Science Skills

Observing

1. Quantitative

2. Qualitative

• use your senses and tools to gather information

• #’s • example: temp. 101°F

• descriptions• example: a person’s

head feels warm

Science Skills

Organizing

1. Classifying

2. Recording

• recording data and observations

• grouping together items that are alike

• data charts• graphs

Science Skills

Models • represent complex objects or processes

• example: solar system• example: compounds

Science Skills

Inferring • explanations of what you observe

• not just guessing, it’s an educated guess

• tries to explain what has already happened

Classifying Cancer Colonies

• Page 8

• With your table group, read the passage and answer the questions

• Be prepared to share out

Science Skills

Predicting • make a statement or a claim

• tries to explain what will happen

Infer vs Predict Example: Puddle of Water

You see a puddle of water and a glass on the floor. You infer that a glass of water spilled. You didn’t see it happen, but, based on the evidence you can make an educated guess.

You watch someone bump into a glass of water. You can predict that it is going to spill on the floor and make a mess.

Page 9

Think about proportions• How much bark is needed

1 kg bark = X kg bark

0.015 kg paclitaxel 120 kg paclitaxel

X kg bark (0.015 kg) = 1 kg bark (120 kg)

X = 120 kg = 8,000 kg bark

0.015 kg

Real life problems• How many trees need to be cut down each year?

• 3 trees make about 5 kg of bark

• Need 120 kg of paclitaxel to treat 60,000 patients

• 8,000 kg of bark to make 120 Kg paclitaxel

8,000 kg bark x 3 trees = 4,800 trees5 kg bark

What do you think?

Science Skills

Analyzing • evaluating observations and data

• results and conclusions

• no opinions, follow the data!

Summary (5 min silent writing)Write 3-4 sentences in paragraph form.

Suppose you want to know if the color of peoples hair affects the temperature of their head. Describe skills you would use to conduct an experiment to test your inquiry (question).

Foil Boat Designs

STEM (Science, technology, engineering, mathematics)

What is the strongest aluminum foil boat that

you can make?