density and foam slime\ncalculate and record the density of each substance and determine if each will sink…

density and foam slime\ncalculate and record the density of each substance and determine if each will sink or float in homemade foam slime, which has a density of 2.2 g/ml.\n| substance | mass (g) | volume (ml) | density (g/ml) | sink, float, or neither? |\n|--|--|--|--|--|\n| charcoal | 4 | 20 | 0.2 | float |\n| maple wood | 14 | 20 | 0.7 | float |\n| brick | 48 | 20 | 2.7 | sink |\n| iron | 156 | 20 | 7.8 | sink |

density and foam slime\ncalculate and record the density of each substance and determine if each will sink or float in homemade foam slime, which has a density of 2.2 g/ml.\n| substance | mass (g) | volume (ml) | density (g/ml) | sink, float, or neither? |\n|--|--|--|--|--|\n| charcoal | 4 | 20 | 0.2 | float |\n| maple wood | 14 | 20 | 0.7 | float |\n| brick | 48 | 20 | 2.7 | sink |\n| iron | 156 | 20 | 7.8 | sink |

Answer

Explanation:

Step1: Recall density formula

The density formula is $\rho=\frac{m}{V}$, where $\rho$ is density, $m$ is mass and $V$ is volume.

Step2: Calculate density of charcoal

For charcoal, $m = 4$ g and $V=20$ mL. So $\rho=\frac{4}{20}=0.2$ g/mL. Since $0.2<2.2$, it will float.

Step3: Calculate density of maple - wood

For maple - wood, $m = 14$ g and $V = 20$ mL. So $\rho=\frac{14}{20}=0.7$ g/mL. Since $0.7<2.2$, it will float.

Step4: Calculate density of brick

For brick, $m = 48$ g and $V = 20$ mL. So $\rho=\frac{48}{20}=2.4$ g/mL. Since $2.4>2.2$, it will sink.

Step5: Calculate density of iron

For iron, $m = 156$ g and $V = 20$ mL. So $\rho=\frac{156}{20}=7.8$ g/mL. Since $7.8>2.2$, it will sink.

Answer:

Substance Mass (g) Volume (mL) Density (g/mL) Sink, Float, or Neither?
Charcoal 4 20 0.2 float
Maple Wood 14 20 0.7 float
Brick 48 20 2.4 sink
Iron 156 20 7.8 sink