[Free Registration/Login may be required to access all resource tools.] What artificial light is and five different types, and how each type produces visible light.

[Free Registration/Login may be required to access all resource tools.] How to calculate work from force and distance and vice versa, and the SI unit for work.

[Free Registration/Login may be required to access all resource tools.] The abundance of carbon and how it forms bonds.

[Free Registration/Login may be required to access all resource tools.] Difference between a monomer and polymer and examples of natural and synthetic carbon polymers.

[Free Registration/Login may be required to access all resource tools.] Oceanic pressure and how it changes with depth, and how to adjust to this change.

[Free Registration/Login may be required to access all resource tools.] Scope of physics and how physics helps us understand the universe.

[Free Registration/Login may be required to access all resource tools.] Describes the convection cells present in our atmosphere.

[Free Registration/Login may be required to access all resource tools.] Some children are born with genetic defects that are not carried by a single gene. Instead, an error in a larger part of the chromosome or even in an entire...

[Free Registration/Login may be required to access all resource tools.] Natural selection acts on the phenotype (traits or characteristics) of an individual. On the other hand, natural selection does not act on the underlying genotype...

[Free Registration/Login may be required to access all resource tools.] There are approximately 160,000 living species and probably 70,000 extinct species of mollusks. They are typically divided into ten classes, of which two are...

[Free Registration/Login may be required to access all resource tools.] You probably know people who need eyeglasses or contact lenses to see clearly. Maybe you need them yourself. Lenses are used to correct vision problems. Two of the...

[Free Registration/Login may be required to access all resource tools.] Explains how Earth is a magnet, its geographic and magnetic poles, and its magnetic field.

[Free Registration/Login may be required to access all resource tools.] Write percents as fractions and fractions as percents

[Free Registration/Login may be required to access all resource tools.] Decribes how energy changes from one form to another and energy changes between kinetic and potential energy.

[Free Registration/Login may be required to access all resource tools.] What a longitudinal wave is, its compressions and rarefactions and what a P wave is.

[Free Registration/Login may be required to access all resource tools.] Definition of physical change and examples, and how physical changes can be reversed.

[Free Registration/Login may be required to access all resource tools.] Projectile motion and combining forces, examples of projectile motion.

[Free Registration/Login may be required to access all resource tools.] How thermal energy is transferred by thermal radiation and sources of thermal radiation.

[Free Registration/Login may be required to access all resource tools.] The four types of friction and how they act on objects.

[Free Registration/Login may be required to access all resource tools.] What wave interference is, constructive and destructive interference and how standing waves occur.

[Free Registration/Login may be required to access all resource tools.] How solar energy can be collected and used, and the consequences of it.

[Free Registration/Login may be required to access all resource tools.] Like all organisms, bacteria need energy, and they can acquire this energy through a number of different ways. Learn more about bacteria nutrition in this learning...

[Free Registration/Login may be required to access all resource tools.] Refusing one meal won't stunt your growth. But lack of proper food over a period of time can lead to malnutrition. That means the body is not getting enough...

[Free Registration/Login may be required to access all resource tools.] Different fungi reproduce in different ways. Many fungi reproduce both sexually and asexually. However, some reproduce only sexually and some only asexually. Asexual...