Density
Formulas:
Density= Mass/Volume
Volume= Length x Width x Height
Measure the mass of an object using a triple beam balance, analog scale, digital scale, or any other option.
Calculate the volume of an object with a formula or by submerging it in a graduated container and finding the difference.
Calculate the density of and object (density=mass/volume).
Compare the density of an object to water (1 g/cm^3) or (1000 kg/m^3). Will it float?
Compare densities of different objects
Calculate the volume of an object with a formula or by submerging it in a graduated container and finding the difference.
Calculate the density of and object (density=mass/volume).
Compare the density of an object to water (1 g/cm^3) or (1000 kg/m^3). Will it float?
Compare densities of different objects
Cube
side3 Rectangular Prism (block) side1 × side2 × side3 Sphere (4/3) × pi × radius3 Cylinder pi × radius2 × height Cone (1/3) × pi × radius2 × height Pyramid (1/3) × (base area) × height Torus (1/4) × pi2 × (r1 + r2) × (r1 - r2)2 |
Videos
Experiments and Activities
Multiplying Decimals
Just follow these steps:
Multiply normally, ignoring the decimal points.
Then put the decimal point in the answer - it will have as many decimal places as the two original numbers combined.
Multiply normally, ignoring the decimal points.
Then put the decimal point in the answer - it will have as many decimal places as the two original numbers combined.
Dividing Decimals
To divide decimal numbers follow these steps:
If the divisor is not a whole number, move decimal point to right to make it a whole number and move decimal point in dividend the same number of places.
Divide as usual...
Put decimal point directly above decimal point in the dividend.
Check your answer.
If the divisor is not a whole number, move decimal point to right to make it a whole number and move decimal point in dividend the same number of places.
Divide as usual...
Put decimal point directly above decimal point in the dividend.
Check your answer.