Sun
These four short online lessons cover the following:
- What is the sun?
- Interior of the sun
- Outer layers of the sun
- Surface features of the sun
These four short online lessons cover the following:
This online resource investigates the internal structure, outer layers and surface features of the sun.
This online resource explores the terrestrial, or inner, planets - the planets closest to the sun: Mercury, Venus, Earth and Mars.
Micturition (peeing) starts with urine flowing from the kidneys to the bladder via ureters. The bladder expands using transitional epithelium. Urine exits through the urethra, controlled by internal and external urethral sphincters. Ureters prevent backflow, thereby reducing infection risk
We can analyse the arrows in a food web to identify producers, primary consumers, secondary consumers, and decomposers.
We can analyse the arrows in a food web to identify producers, primary consumers, secondary consumers, and decomposers.