Answer: The independent variable is, different types of soil. What you need to identify is a measurable dependent variable, which could be the rate of plant growth. Now state your science … [Read more...]
What is Mass?
The mass of an object is NOT dependent on gravity, thus the mass of an object is the same no matter where in the universe it is measured. The standard metric unit of mass is the kilogram. Mass … [Read more...]
What does elasticity mean?
Elasticity describes the ability of a substance to be stretched or compressed, then return to is normal shape. Stretch a rubber band, then release it. The molecules making up the rubber band can be … [Read more...]
What does viscosity mean?
Viscosity is a measure of how resistant a fluid is to substances moving through them. The simplest answer is that viscosity is a measure of how thick a fluid is. The greater the viscosity the thicker … [Read more...]
What is the difference between dyes and pigments?
Dyes and pigments are considered colorants, meaning they are substances that impart coloring to a material. Dyes are soluble coloring material. Dyes are absorbed into the material to which they are … [Read more...]
Does Light Color Affect Plant Growth?
Sunlight contains all the colors of the visible light spectrum, from red to violet. Each color of light has a different amount of energy. Light is wave energy, thus each light color has a different … [Read more...]
How can I prove that gas is a phase of matter?
Matter is anything that takes up space and has mass. Gases are one state of matter. Physical Properties of Gases Gases are neither close together nor fixed in place. This means that the shape … [Read more...]
Can crystals be grown without heat?
Yes, You Can Grow Crystals without Heat by an Evaporation Method Crystals grown by the evaporation method are generally larger and better formed. This method is slower but the results are worth … [Read more...]