fourth grade science test

> Atomatic number of the elements 1st Period n = 1 Short period 2 Atomic number 1 and 2 2nd Period n = 2 Short period 8 Atomic number 3 to 10 3rd Period n = 3 Long period 8 Atomic number 11 to 18 4th Period n = 4 Long period 18 Atomic number 19 to 36 5th Peri..

Matter In Our Surroundings - Matter can be defined as anything that occupies space, (i.e., has a volume), possesses mass, offers resistance and can be felt through one or more of our sense..

Question 1 - Question: 1 km/h = _____ m/s 1. 2. 3. 4. Answer:..

Question 1 - Question: The science of classification is called 1. demography 2. taxonomy 3. biology 4. none of the above Answer:..

Question 1 - Question: What is a symbol? What information does it convey? Answer: A short hand representation of an element is called symbol. It represents the following: Name of the element One atom of the element One mole of atoms. It represents 6.023 x 10 23 atoms of the element. A definite mass..

Question 1 - Question: The approximate number of cells in a normal human body is ____. 1. 10 2. 100 3. 10 1 4 4. 10 1 4 4 Answer:..

Question 1 - Question: Define force of gravitation. Answer: The force of attraction which exists between any two objects in the universe is known as force of gravitatio..

Question 1 - Question: A mixture of oil and water is an example of _____________. 1. compound 2. two elements 3. mixture 4. true solution Answer:..

Question 1 - Question: Matter has ___________. 1. no mass but occupies space 2. mass but occupies no space 3. mass and occupies space 4. no mass and occupies no space Answer:..

Question 1 - Question: How do you classify our natural resources? Answer: We can classify our natural resources into two categories: (a) Inexhaustible resources: Renewable resources such as solar radiation, air and water. (b) Exhaustible resources: Non-renewable natural resources which are availabl..