Prepare a poster or display dealing with evidence for creation or evolution. Scientists employ a common but special type of reasoning when they try to explain past, unrepeatable events that had no observers. This simply describes what they think happened. Once the model is defined, especially when alternative models are available, observations and measurements can be made that will help raise or lower the model's plausibility. There are many possible models of origins.
Genetic variations are limited.
The earth has experienced a worldwide flood. Random mutations and natural selection brought about present living kinds from single-celled life. All life has a common ancestor. The evolution model is completely silent concerning the origin of matter, space, energy, time, and the laws of chemistry and physics. They admit they are scientifically blind prior to such an event.