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Warm-up #1 August 29th 1.) What must you do to make earning an A or B as easy as possible? 2.) What is the class website address? 3.) What are the steps of the Scientific Method? Do your homework every time it is assigned www.colinamiddle.net/dmatras 1.) observation 2.)question 3.) hypothesis 4.)Prediction 5.) experiment 6.) analysis 7.) decision 8.) repeat from prediction 9.) conclusion/theory

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Warm-up #2 Tues August 30 th Do NOT write down this example- just answer the questions –You set up an experiment to determine under what color of light plants grow best. You set one set of plants in sunlight; another set of plants under a blue light and a third set under a red light. The plants in the red light grew 2 inches per week; the plants in the blue light grew 4 inches per week and the plants in the sunlight grew 8 inches per week. 1.) What is the control group? 2.) Which group(s) is the experimental group(s)? 3.) What is the responding variable? 4.) What is the manipulated variable? The plants in the sunlight The plants under the red and blue light The growth of the plants The color of the light

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Warm-up #3 Wed August 31st 1.) What is the definition of: Length- Volume- Mass- Length- the distance between two points Volume- the amount of space an object occupies Mass- the amount of matter in an object

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Warm-up #4 Thur Sept. 1st 1.) What are the four basic measurements we make most often? Length- the distance between two points Mass- the amount of matter in an object Time- how long something takes to happen Temperature- a measure of the amount of energy in an object

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Warm-up #5 Fri Sept. 2nd 1.) What common metric units are used to measure LENGTH? 2.) What common metric units are used to measure VOLUME? Units for Length: millimeters, centimeters, meters and kilometers Units for Volume: milliliters and Liters

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Warm-up #6 Wed Sept. 7th 1.) What are the two different units used to measure small volumes? (Hint: one for solids and one for liquids) 2.) A Liter is 1000 cm 3. What dimensions of a cube do you need to have a volume of 1 Liter or 1000 cm 3 ? 1.) cubic centimeters or milliliters 2.) 10cm x 10 cm x 10 cm = 1000cm 3 or one Liter

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Warm-up #7 Thurs Sept. 8th 1.) What is the relationship between a milliliter (mL); a cubic centimeter (cm 3 ) and a gram (g) of pure water? 2.) How many grams of water will you have if you fill a container with 235 mL of pure water? 1.) 1 mL = 1 cm 3 = 1 gram of pure water 2.) 235 mL = 235 grams of pure water

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Warm-up #8 Friday Sept. 9th 1.) What is the formula for Density? 2.) What is the formula to find the slope of a line? 1.) 2.)

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Warm-up #9 Monday Sept. 12th 1.) Describe how to find the volume of a rock? 2.) Describe how to find the volume of a block of wood? 1.) Place some water in a graduated cylinder. Drop in the rock and measure the change in volume of the water to get the volume of the rock. 2.) Use the formula V = L x W x H

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Warm-up #11 Monday Sept. 19th 1.) What is the density of a block of wood with the dimensions of 2cm x 3cm x 4 cm if its mass is 12 grams? 2.) A 100gram rock is put into a cylinder of water containing 25mL and the water rises to 35mL. What is the density of the rock?

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Warm-up #12 Tuesday Sept. 20th 1.) The mass of an object is 200g and its density is 10g/cm 3. What is the volume of the object? 2.) If a rock has a density of 3g/cm 3. How many grams would the rock weigh if its volume was 30cm 3 ?

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Warm-up #13 Monday Sept. 26th 1.) When a river enters the ocean the fresh water from the river will spread across the surface of the ocean. Explain whys this happens. 2.) Why does a hot air balloon float in the air?

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Chpt 2: Warm-up #1 Monday Oct 3 1.) Define “Physical Property”. 2.) Define “Chemical Property” 3.) Give an example of each of the above. 4.) What is matter?

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Density. Different substances have different densities. The density of a material does not depend on the size or amount of the substance you have. Density.

Density. Different substances have different densities. The density of a material does not depend on the size or amount of the substance you have. Density.

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