# Math and science problem solving- When does density change?        Subject
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(90 KB|6 pages)
Standards
• Product Description
• Standards
This is an activity where students will show their understanding of integrated math and science by using constants and variables to determine density.
OA.4 Determine the unknown whole number in a multiplication or division equation relating three whole numbers.
Algebraic g4 .
AT.6: Understand that an equation, such as y = 3x + 5, (or D = M/V) is a rule to describe a relationship between two variables and can be used to find a second number when a first number is given
M.1: Convert among different-sized standard measurement units within a given measurement system, and use these conversions in solving multi-step real-world problems.
Science Standards
8.1.6 Explain that elements and compounds have characteristic properties such as density, boiling points and melting points that remain unchanged regardless of sample size.

Represent three-dimensional figures using nets made up of rectangles and triangles, and use the nets to find the surface area of these figures. Apply these techniques in the context of solving real-world and mathematical problems.
Find all factor pairs for a whole number in the range 1-100. Recognize that a whole number is a multiple of each of its factors. Determine whether a given whole number in the range 1-100 is a multiple of a given one-digit number. Determine whether a given whole number in the range 1-100 is prime or composite.
Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
Multiply or divide to solve word problems involving multiplicative comparison, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem, distinguishing multiplicative comparison from additive comparison.
Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 × 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Represent verbal statements of multiplicative comparisons as multiplication equations.
Total Pages
6 pages
Included
Teaching Duration
40 minutes
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