Remains of an imprint of a once living organism
What is fossil?
What is the role of salt in this diagram?
What is a solute?
A solution containing ions
What is an electrolyte?
Hetero means
What is different?
Animals that start their life in the water move on land, for example, frogs.
What is an amphibian?
Which type of rock fossils are found?
What is a sedimentary rock?
Valence electrons of Al
What is 3?
Define electrolysis
Electrolysis is a process in which an electric current pass through an ionic solution.
Atomic mass

What is 4?
Organisms only found in a specific area or place
What is endemic ?
One evidence of evolution: organisms share structural traits
What is common structure?
Give one example of an element that has complete valence. (2 and 8)
What are He, and Ne, Ar, and Kr?
Negative electrode
What is the cathode?
Complete the square

Answer may vary
Animals that are very low in number, for example, rhinoceros.
What are endangered species?
This is one evidence of evolution, an example is that 96% of humans and monkeys share
What is similar DNA?
What is oxygen or sulfur?
Positive electrodes and the type of atoms are attracted to them.
What are anodes and anions?
Number of electrons
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What is 10?
There are 2 types of mammals, one that produces young and the other one that produces eggs.
What are placental and monotremes?
When different organisms shares similar characteristics during the embryo stage.
Compare and Contrast: Solute and Solvent
Solute - Solid part of a solution that is dissolved
Solvent - Liquid part of the solution, it is used for dissolving.
Both: Part of a solution
Compare and Contrast: Anion and Cation
Anion: negatively charged ions
Cation: positively charged ions
Both: charged particles or ions
Is this an ion? Explain your answer.
Not an ion because protons and electrons are the same number.
Give 1 characteristic of AVES, and give one example.
Animals with feathers lay eggs, and hollow bones, for example, chickens, dove, and eagles.