Year 9 Water Round 1

Question One Name the 3 states of matter

Question Two Describe what the particles are like in a solid

Question Three Describe what the particles are like in a liquid

Question Four Water exists in each of the 3 states. Name them.

Why can gases be squashed? Question Five Why can gases be squashed?

Year 9 Water Round 1 ANSWERS

Question One Name the 3 states of matter Solid Liquid Gas

Question Two Describe what the particles are like in a solid Close together and vibrating about a fixed position

Question Three Describe what the particles are like in a liquid Close together and able to slide past each other

Question Four Water exists in each of the 3 states. Name them. ICE WATER WATER VAPOUR

Why can gases be squashed Because they are far apart Question Five Why can gases be squashed Because they are far apart

Year 9 Water Round 2 Changes of State

Question 1 Name the changes of state when a: Liquid changes into a gas Gas changes in to a liquid Solid changes into a gas Solid changes into a liquid

Question Two a) What is this piece of equipment called? b) What does it measure?

Question 3 What is the unit for mass and what is the unit symbol?

Question Four Name this piece of equipment and what is it used to measure?

Question Five Name the curved surface of the liquid in the measuring cylinder? What is the volume of liquid in this measuring cylinder

Round 2 Changes of State and Measuring- ANSWERS Year 9 Water Round 2 Changes of State and Measuring- ANSWERS

Question 1 Name the changes of state when a: Liquid changes into a gas Evaporation/boiling b) Gas changes into a liquid Condensation c) Solid changes into a gas Sublimation d) Solid changes into a liquid Melting

Question Two What is this piece of equipment called? Electronic balance b) What does it measure? Mass

Question 3 What is the unit for mass and what is the unit symbol Question 3 What is the unit for mass and what is the unit symbol? grams g

Question Four Name this piece of equipment and what is it used to measure? Measuring cylinder The volume of a liquid

Question Five Name the curved surface of the liquid in the measuring cylinder? MENISCUS What is the volume of liquid in this measuring cylinder 43 mL

Round 3 Atoms and molecules Year 9 Water Round 3 Atoms and molecules

Question one What is the meaning of the word element?

Question Two What is the meaning of the word compound?

Question Three Which picture represents atoms of an element? A B C

Question 4 Which picture(s) show(s) molecules A B C

Question Five Which letter(s) show compounds? A B C

Round 3 Atoms and molecules-ANSWERS Year 9 Water Round 3 Atoms and molecules-ANSWERS

Question one What is the meaning of the word element Question one What is the meaning of the word element? A pure substance made of only one type of atom

Question Two What is the meaning of the word compound? Pure substances which contain atoms of 2 or more elements in a fixed ratio

Question Three Which picture represents atoms of an element? A B C C

Question 4 Which picture(s) show(s) molecules A B C

Which letter(s) show compounds? A B C Question Five Which letter(s) show compounds? A B C A B

Round 4 Chemical symbols and formulae Year 9 Water Round 4 Chemical symbols and formulae

Question One Write the name for the following elements Cu Mg Fe Pb

Question Two Write the name for the following elements: O N S Cl

Question 3 Write the symbol for the following elements: sodium potassium aluminium

Question four How many atoms in total are there in: MgSO4 C6H12O6

Question Five Write the chemical formula for water

Round 4 Chemical symbols and formulae-ANSWERS Year 9 Water Round 4 Chemical symbols and formulae-ANSWERS

Question One Write the name for the following elements Cu Copper Mg Magnesium Fe Iron Pb Lead

Question Two Write the name for the following elements: O oxygen N nitrogen S sulfur Cl chlorine

Question 3 Write the symbol for the following elements: Sodium Na Potassium K Aluminium Al

Question four How many atoms in total are there in: MgSO4 6 C6H12O6 24

Question Five Write the chemical formula for water H2O

Round 5 Mixtures & Separation Methods Year 9 Water Round 5 Mixtures & Separation Methods

Question one What is the definition of a mixture?

Question Two Which letter represents a mixture? A B C

Question 3 In a glass of mango-flavoured Refresh, name the: Solute Solvent Final mixture where the refresh powder has dissolved.

Question 4 What method would you use to separate sand from water?

Question Five What is the meaning of the word soluble? Give and example of a substance that is soluble in water

Round 5 Mixtures & Separation Methods-ANSWERS Year 9 Water Round 5 Mixtures & Separation Methods-ANSWERS

Question one What is the definition of a mixture? 2 or more pure substances that are mixed together but are NOT chemically combined.

Question Two Which letter represents a mixture? A B C

Question 3 In a glass of mango-flavoured Raro, name the: Solute- Raro powder Solvent- Water Final mixture where the refresh powder has dissolved Solution

FILTRATION OR DECANTING Question 4 What method would you use to separate sand from water? FILTRATION OR DECANTING

Question Five What is the meaning of the word soluble? Able to dissolve Give and example of a substance that is soluble in water Salt