Measurements 5th grader

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Parallel Structure in Sentences

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What is the definition of “scientific notation?”

What is the definition of “scientific notation?”

5th Grade “Vocabulary” Question


Amanda

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5th Grade “Vocabulary” Answer5th Grade “Vocabulary” Answer

In scientific notation, numbers are written in the form M x 10n, where the factor M is a number greater than or equal to 1 but less than 10 and n is a whole number.

In scientific notation, numbers are written in the form M x 10n, where the factor M is a number greater than or equal to 1 but less than 10 and n is a whole number.

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Amanda says : In scientific notation, numbers are written in the form M x 10n, where the factor M is a number greater than or equal to 1 but greater than 10 and n is a whole number.

What is the volume of a sample of helium that has a mass of 1.73 x 10-3 g, given that the density is 0.178 47 g/L?

What is the volume of a sample of helium that has a mass of 1.73 x 10-3 g, given that the density is 0.178 47 g/L? Peek

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9.69 mL 9.69 mL


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Amanda says :

9.69 L

What is the definition of “percent error?

What is the definition of “percent error?



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Percent error is calculated by subtracting the experimental value from the accepted value, dividing the difference by the accepted value, and then multiplying by 100.

Percent error is calculated by subtracting the experimental value from the accepted value, dividing the difference by the accepted value, and then multiplying by 100.


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Amanda says : Percent error is calculated by subtracting the experimental value from the accepted value, dividing the difference by the accepted value, and then multiplying by 100.

Professor Ali rewarded his students for working hard on the final project and going beyond the call of duty.

Professor Ali rewarded his students for their hard work on the final project and going beyond the call of duty.


Professor Ali rewarded his students for their hard work on the final project and going beyond the call of duty.

5th Grade “Choose the Correct Sentence” Question

5th Grade “Choose the Correct Sentence” Question

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5th Grade “Choose the Correct Sentence” Answer

5th Grade “Choose the Correct Sentence” Answer

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Amanda says : Professor Ali rewarded his students for working hard on the final project and going beyond the call of duty.

For two directly proportional quantities, what happens to one variable when the other increases?

For two directly proportional quantities, what happens to one variable when the other increases?

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Edward


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4th Grade “Concepts” Question4th Grade “Concepts” Question

It decreases. It decreases.

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Edward says :

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Suppose a graduated cylinder were not corrctly calibrated. How would this affect the results of a measurement? How would it affect the results of a calculation using this measurement?

Suppose a graduated cylinder were not corrctly calibrated. How would this affect the results of a measurement? How would it affect the results of a calculation using this measurement?

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Edward

It would introduce error in the measurement and any subsequent calculations.


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Edward says :


How many millimeters are there in 5.12 x 105 kilometers?

How many millimeters are there in 5.12 x 105 kilometers?

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5.12 x 1011 mm 5.12 x 1011 mm


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Edward says :

5.21 x 1011 mm

What is the definition of “weight?” What is the definition of “weight?”



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Weight is the measure of the gravitational pull on matter.


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Edward says :


Polycarbonate plastic has a density of 1.2 g/cm3. A photo frame is constructed from two 3.0 mm sheets of polycarbonate. Each sheet measures 28 cm by 22 cm. What is the mass of the photo frame?

Polycarbonate plastic has a density of 1.2 g/cm3. A photo frame is constructed from two 3.0 mm sheets of polycarbonate. Each sheet measures 28 cm by 22 cm. What is the mass of the photo frame?

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Joseph

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440 g 440 g


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Joseph says :

440 g

Joseph

What is the volume, in cubic meters, of a rectangular solid that is 0.25 m long, 6.1 m wide, and 4.9 m high?

What is the volume, in cubic meters, of a rectangular solid that is 0.25 m long, 6.1 m wide, and 4.9 m high?

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3rd Grade “Wild Card” Answer3rd Grade “Wild Card” Answer

7.5 m3 7.5 m3

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Joseph says :

7.5 m3

Joseph

How does quantitative information differ from qualitative information?

How does quantitative information differ from qualitative information?

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Joseph

Quantitative information is numerical; qualitative information is non-numerical.



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Joseph says :


Joseph

What is volume? What is volume?



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3rd Grade “Wild Card” Answer3rd Grade “Wild Card” Answer

Volume is the amount of space occupied by an object.

Volume is the amount of space occupied by an object.

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Joseph says :

Volume is how much the object weighs.

Joseph

Why are the units used to express the densities of gases different from those used to express the densities of solids or liquids?

Why are the units used to express the densities of gases different from those used to express the densities of solids or liquids?

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Smaller units are used because gases are less dense.

Smaller units are used because gases are less dense.


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Cynthia says :

Larger units are used because gases take up more space.

Cynthia

What is the definition of “scientific figures?”

What is the definition of “scientific figures?”

2nd Grade “Vocabulary” Question


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Cynthia

Scientific figures in a measurement consist of all the digits known with certainty plus one final digit, which is somewhat uncertain or is estimated.


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Cynthia says :


Cynthia

Why are standards needed for measured quantities?

Why are standards needed for measured quantities?

2nd Grade “Wild Card” Question

2nd Grade “Wild Card” Question

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2nd Grade “Wild Card” Answer2nd Grade “Wild Card” Answer

There needs to be agreements on meaning and size of units. Standards for units must be unchanging to avoid confusion and ambiguity.



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Cynthia says :


Cynthia

What is the definition of “model?” What is the definition of “model?”



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A model in science is more than a physical object; it is often an explanation of how phenomena occur and how data or events are related.

A model in science is more than a physical object; it is often an explanation of how phenomena occur and how data or events are related.

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Cynthia says :

A model in science is more than a physical object; it is often an explanation of how phenomena occur and how data or events are different from each other.

Cynthia

What is the definition of “hypothesis?” What is the definition of “hypothesis?”

Logan

1st Grade “Vocabulary” Question

1st Grade “Vocabulary” Question

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1st Grade “Complete the Sentence” Answer

1st Grade “Complete the Sentence” Answer

A hypothesis is a testable statement. A hypothesis is a testable statement.


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Logan says :

A hypothesis is a testable statement.

Logan

How many significant figures are there in : 1002 m?

How many significant figures are there in : 1002 m?

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4 4

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Logan says :

4

Logan

What is the sum of 2.099 g and 0.05681 g?

What is the sum of 2.099 g and 0.05681 g?


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Logan

2.156 g 2.156 g


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Logan says :

2.156 g

Logan

What is the difference between accuracy and precision?

What is the difference between accuracy and precision?

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1st Grade “Concepts” Answer1st Grade “Concepts” Answer

Accuracy refers to the closeness of measurements to the correct or accepted value. Precision refers to the closeness of a set of measurements to one another.

Accuracy refers to the closeness of measurements to the correct or accepted value. Precision refers to the closeness of a set of measurements to one another.

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Logan says :

Accuracy refers to the closeness of a set of measurements to one another. Precision refers to the closeness of measurements to the correct or accepted value.

Logan

$1,000,000 Question$1,000,000 Question A man finds that he has a mass of

100.6 kg. He goes on a diet, and several months later he finds that he has a mass of 96.4 kg. Express each number in scientific notation, and calculate the number of kilograms that the man has lost by dieting.

A man finds that he has a mass of 100.6 kg. He goes on a diet, and several months later he finds that he has a mass of 96.4 kg. Express each number in scientific notation, and calculate the number of kilograms that the man has lost by dieting.

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$1,000,000 Answer $1,000,000 Answer 1.006 x 102 kg 9.64 x 101 kg 4.2 kg

1.006 x 102 kg 9.64 x 101 kg 4.2 kg

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$1,000,000 Question$1,000,000 Question A student measures the mass of some

sucrose as 0.947 mg. Convert that quantity to grams and kilograms. Answer in scientific notation.

A student measures the mass of some sucrose as 0.947 mg. Convert that quantity to grams and kilograms. Answer in scientific notation.

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$1,000,000 Answer $1,000,000 Answer 9.47 x 10-4 g 9.47 x 10-7 kg

9.47 x 10-4 g 9.47 x 10-7 kg

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Sorry, you are not smarter than a fifth grader!

Sorry, you are not smarter than a fifth grader!

You are definitely smarter than a fifth grader!

You are definitely smarter than a fifth grader!

Measurements 5th grader

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Transcript of Measurements 5th grader