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grade 7 science

What is the formula to measure density? Density = mass/volume
Define density mass per unit of volume
Define volume amount of space a substance occupies
Define mass how much matter is in an object
Define viscosity the state of being thick, sticky, and semifluid in consistency, due to internal friction.
Define flow rate the volume of fluid flowing through an area each second.
What are the types of matter? solid, liquids and gases
How does temperature affect viscosity. If the temperature increases, the viscosity decreases which increases the flow rate.
What is the relationship between viscosity and flow rate? The higher the viscosity the lower the flow rate. The lower the viscosity the greater the flow rate.
What experiment did you do that confirms the relationship between viscosity and flow rate? maple syrup
What is a fluid? a substance that flows, a liquid or gas, takes the shape of the container
What is the relationship between temperature and density? If the temperature increases the space between the molecules (speed up) which means there is more volume and less density. If the temperature deceases the closer the particles are together decreasing the volume and increasing the density
What experiment did you do to show compression ? syringe experiment
What is the one exception to the relationship between temperature and density? water. When water freezes, its particles move further apart, making the density of the water less than the density of the liquid.
Created by: raffertyj