A graduate student is designing an experiment to determine the effect of different fertilizers on a species of radishes. The scientist is using the same amount of water and sunlight for 4 plants of the same radish species, and she is using  different brand of common plant fertilizer. Which statement accurately describes the design of this experiment?

A scientist studying the hardness of a certain metallic compound. Which choice would best validate the data collected on the hardness of this metal?

Convert the following number to scientific notation:  0.0000000495.

Vegetable oil floats in water. Why?

If an unknown solid object has a density of 6.00 g∕cm³, what is the density of each piece if the object is cut into three identical pieces?

Density is an intensive property of matter because it does not depend on the size or amount of a substance, but what a substance is made of.

An object has a density of 1.65g/cm³ and it is dropped in water, which has a known density of 1.00 g/mL. What will happen if you drop the object in water.

What lab equipment is needed to calculate the density of an irregular solid.

Use the chart provided to calculate the mass of the salt.

An unkown sample of metal has a mass of 50 g and a volume of 19.2 cm³. Based on the information from the chart provided, identify the substance.

The density of a liquid was calculated to be 3.05 g/mL. You look up the density of this liquid and the actual density is 3.12 g/mL. What is the percent error?

You need to measure 4.5 mL of water. Which lab tool is better for this task?

How would you describe this data if the accepted value is 30.45?

How would you describe this data if the accepted value is 20. 

Use the image provided and the densities of each substance to determine where each liquid would be, from the bottom up, if you poured them into a graduated cylinder.