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WorksheetsVirtual Science QuizBee 2021 -Easy Round
Total questions: 10
Worksheet time: 50secs
1. What do you call the list of all the elements arranged by their atomic number and mass?
A. menu
B. elements lists
C. Periodic Table of Elements
D. Table of specification
2. It is an educated guess or prediction.
A. observation
B. experiment
C. conclusion
D. hypothesis
3. The method of gathering information by using your senses is called a/an________________ .
A. observation
B. experiment
C. conclusion
D. hypothesis
4. Children are advised to drink milk because it contains an element which is important in the formation and maintenance of strong bones and teeth. What is this element?
A. iron
B. potassium
C. calcium
D. sodium
5. How many different elements are in this chemical formula: C2H2ClK3
A. 6
B. 2
C. 8
D. 4
6. Which of the following atomic symbols is written correctly?
A. Ee
B. hE
C. C
D. CL
7. What do you call a substance that can be found on the periodic table?
A. elements
B. compounds
C. mixtures
D. pure substance
8. When two or more elements chemically combine, they are called?
A. elements
B. compounds
C. mixtures
D. pure substance
9. Provided is a list of five different substances. How many of these substances are elements?
A. 2
B. 3
C. 4
D. 5
10. Fair testing is conducted by making sure that one variable is changed while keeping all other conditions the same. To know the effects of light to plant, which of the following will you do?
A. Keep the two plants in a shaded area.
B. Expose the two plants to a watery area.
C. Expose the two plants to an area where the sun shines.
D. Keep one plant to the shaded area while the other to the lighted area.
