Science Trivia Quiz

Answer: Sodium and Chlorine

Table salt (sodium chloride) is made out of the elements sodium and chlorine. It is made up of one atom of each. Its chemical formula is NaCl. A little salt is needed for all human beings, but too much salt can lead to problems, like high-blood pressure.

Answer: Nucleus

The nucleus controls all the reactions within the cell. The chloroplast is the organelle in plant cells where photosynthesis (where radiant energy from the sun is converted to chemical energy) takes place. It contains pigments known as chlorophyll. Chloroplasts are only found in plant cells.

The mitochondria is where respiration occurs. All cells (not just plant cells) contain mitochondria. All cells also have a cell-membrane. This selectively allows some materials to pass, and not others, such as starches.

Answer: Oxygen

Plants keep the oxygen content stable by photosynthesis. They release oxygen gas into the atmosphere as a by-product of photosynthesis. Denitrifying bacteria contribute to the vast amount of atmospheric nitrogen in the atmosphere (78% of the earth's atmostphere is nitrogen). Carbon dioxide is needed for photosynthesis, but isn't released into the atmosphere by photosynthetic processes.

Answer: Neutron, electron, and proton

The proton has a positive charge, the neutron has no charge, and the electron has a negative charge. The electrons are on the outer orbit of a atom. A covalent bond exists when electrons are shared between atoms. This is the most common form of chemical bonding. All matter is made out of atoms. Chemical elements contain only one type of atom. All the chemicals in a cell are made out of atoms, so atoms must be VERY, VERY tiny indeed!

Answer: Water and a salt

Whenever an acid and base combine, they almost always produce water and a salt. However, water and carbon dioxide are occasionally produced. You have probably heard of the volcano experiment! Well, when you mix baking soda (a base) and vinegar (an acid) together, the end products are water and carbon dioxide.

However, it is mostly water and a salt (such as sodium chloride) that are produced in this type of reaction.

Answer: Potential energy

Potential energy is stored energy. Kinetic energy is moving energy. Radiant energy is the energy the sun gives off! Chemical energy is the energy created by a chemical reaction.

Answer: Micrometre

To get a micrometre, you multiply the amount of millimeters by a 1000. So, if the answer in millimeters was 3, it would be 3000 in micrometres! A micrometer is one millionth of a meter - very, very small!

Answer: Nitrogen

Nitrogen is NOT a greenhouse gas, however nitrous oxide is. Greenhouse gases contribute to global warming. Deforestation is a big contributer to the greenhouse effect.

Answer: Angiospermae

All plants in the class Angiospermae contain flowers! These flowers attract insects and other small organisms to carry their seeds. In this mutualistic relationship, the plants get their seeds distrubuted within the area leading to diversity. In return, the animals get fed with the fruit that the plants contain. Gymnosperms do not contain flowers. Both gymnosperms and angiosperms belong to the phylum Tracheophyta. Because it is not a class, but instead a phylum, that is not the right answer!

Answer: Nervous system

The nervous system contains the brain. The circulatory system contains the heart. The digestive system contains the small and large intenstines. The respiratory system contains the lungs and all the organs that help us breathe! We need all these organ systems to survive! I really hope you enjoyed my quiz! I hope you learned LOADS of new infomation!