Physical science for senior high school.pptx

physical science

1. Physical science

2. PHYSICAL SCIENCE It is a branch of natural science that studies non-living systems , in contrast to life science. It in turn has many branches, each referred to as a "physical science", together called the "physical sciences".

3. big bang theory IN THE EARLY UNIVERSE

4. Big bang theory explains how the elements were initially formed the formation of different elements involved many nuclear reactions, including fusion, fission and radioactive decay. part of its proof is the amounts of H and He we have in the universe today.

5. Stages of the big bang theory

6. singularity a point in space and/or a moment in time where the universe was infinitely hot and dense

7. inflation Is a theory of exponential expansion of space in the early universe. The inflationary epoch lasted from 10-36 seconds.

8. nucleosynthesis Is the process that creates new atomic nuclei from pre-existing nucleons, primarily protons and neutrons.

9. recombination Refers to the epoch at which charged protons and electrons first became bound to form electrically neutral hydrogen atoms.

10. Annihilation A reaction in which a particle and its antiparticle collide and disappear, releasing energy.

11. Activity

12. INSTRUCTIONS: 1. Stick small stickers randomly on the surface of the uninflated balloon. 2. Quickly inflate the balloon with a pump or your breath. 3. Observe the stickers.

13. QUESTIONS: 1. Why do the stickers appear to be moving away from each other? 2. Are the stickers moving across the balloon? 3. Do the stickers themselves grow in size?