What are the 8 lab safety rules? General Laboratory Safety Rules Know locations of laboratory safety showers, eyewashstations, and fire extinguishers. Know emergency exit routes. Avoid skin and eye contact with all chemicals. Minimize all chemical exposures. No horseplay will be tolerated. Assume that all chemicals of unknown toxicity are highly toxic. What are the […]
Was the Ark bigger than the Titanic?
What is light quality?
What is light quality? Light quality is the wavelength (in nanometers, nm) within the electromagnetic spectrum; i.e. blue light is 450 nm and red light is 650 nm. Each wavelength has a different packet of radiation or energy (in J mol-1) called photons. What type of light causes damage to plants? UV-B radiation has been […]
Do fires raise soil pH?
Do fires raise soil pH? The impact of fires on vegetation and wildlife is obvious. Nutrient levels and soil organic matter both increase after fire. Spanish research showed a significant increase in soil pH, carbon and nutrients immediately after a prescribed grass fire. How is soil affected by fire? The most dramatic effect of a […]
What is the difference between the two igneous rocks?
What is the difference between the two igneous rocks? The two main categories of igneous rocks are extrusive and intrusive. Extrusive rocks are formed on the surface of the Earth from lava, which is magma that has emerged from underground. Intrusive rocks are formed from magma that cools and solidifies within the crust of the […]
What is homeostasis in cells?
What is homeostasis in cells? In biology, homeostasis is the state of steady internal, physical, and chemical conditions maintained by living systems. This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits (homeostatic range). What is homeostatic imbalance […]
What will happen when a force is applied on a moving object against the direction of motion?
What happens if a hot air balloon gets a hole?
Does lifting weights make you shorter?
Does lifting weights make you shorter? Most likely, the myth that lifting weights stunts growth came from concern over kids causing damage to their growth plates if they participate in a strength training program. But it’s not the result of lifting weights correctly. Can you grow taller after 30? Bottom line: Can height be increased? […]
How many times have gravitational waves been detected?
How many times have gravitational waves been detected? It is the collaboration’s second catalogue of events, following one published in December 2018 describing their first 11 detections. In all, the observation network has now observed 50 gravitational-wave events (see ‘Cosmic clashes’). How will gravitational waves reveal a hidden universe? With gravitational waves we can study […]