WorksheetsChanges to Materials
Total questions: 12
Worksheet time: 6mins
From material properties below, which one indicates the ability of a substance to be burned?
Flammability
Toxicity
Conductivity
Melting point
What is the product of the reaction between acid and metal?
Salt and Water
Salt and H2
Water and metal
CO2 and H2O
What is the color of universal indicator if we dissolve it inside a strong acid?
Purple
Blue
Green
Red
What is the pH of a neutral solution?
0
5
7
10
To neutralize acid in our stomach when we get stomachache, what should we consume?
Shampoo
Chalk
Antacid
Fertilizer
The melting point of sodium metal is 97 °C while the melting point of Potassium is 63,5 °C. If I heat a container which contains those two metals from room temperature to 80 °C, what will happen?
Nothing will happen
Potassium will melt while Sodium stays solid
Sodium will melt while Potassium stays solid
Both of them will melt
If we want to measure the temperature of our mixture after the reaction takes place, what is the tool that we need to use?
Stopwatch
Measuring cylinder
Thermometer
Scale
When we put baking soda inside a transparent solution, a gas is given of. From that information, what kind of solution is that?
Acid
Neutral
Alkaline
Basic
What is the name of this tool?
Beaker
Erlenmeyer flask
Test tube
Burette
Take a look at the table. From that information, which one is the most acidic from those sample?
A
B
C
D
If we need to break down solid particles into powder, which tool shall we use?
What is the name of reaction between Oxygen gas and something flammable?
Neutralization
Photosynthesis
Decomposition
Combustion
