Chemicals that are used to detect if a substance is an acid, base or neutral are called . These chemicals are extracted from . Three such chemicals are . and

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Jose and eric were given four samples in lab. the results of their analysis are shown in the table. based on the data they collected, which sample is most likely a metal?

Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.