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Chemical Reactions and the Periodic Table — Free MYP1 Sciences Practice Questions
1QuestionCorrosion and Its PreventionConcept Practice
3 marks~5 minCriterion B
Three metals were left in salt water for 30 days. The mass lost by each metal is shown below.
| Metal | Mass lost (g) |
|---|---|
| Iron | 4 |
| Copper | 1 |
| Zinc | 2 |
a
Identify the metal that corroded the most. [1]
b
Describe what the data shows about how mass loss and corrosion are linked. [1]
c
Compare the corrosion of iron and copper. Use the reactivity of the metals in your answer. [1]
Solutions
2QuestionReactions of Metals with AcidsConcept Practice
3 marks~5 minCriterion C
A student placed three metals in separate beakers of dilute hydrochloric acid and counted the bubbles produced each minute.
| Metal | Bubbles per minute |
|---|---|
| Magnesium | 45 |
| Zinc | 18 |
| Iron | 6 |
a
Identify the metal that reacts most vigorously with the acid. [1]
b
Describe the trend in reactivity shown by the data. [1]
c
Zinc produces 18 bubbles per minute and iron produces 6 bubbles per minute. Compare how reactive these two metals are with the acid. [1]
Solutions
3QuestionCorrosion and Its PreventionConcept Practice
2 marks~3 minCriterion A
The diagram shows an iron nail partly in water. The labels are:
X — the rusty area, Y — the water line, Z — the shiny metal above the water.
X — the rusty area, Y — the water line, Z — the shiny metal above the water.
a
Identify the label that shows where corrosion has happened. [1]
b
Describe what corrosion has done to the metal at that label. [1]
Solutions
4QuestionProperties and Uses of MetalsConcept Practice
2 marks~3 minCriterion D
A bicycle frame can be made from aluminium (density ) or steel (density ).
a
Identify which metal is more suitable for a lightweight frame that needs to be carried up stairs. [1]
b
Describe one problem that would occur if the heavier metal were used instead. [1]
Solutions
5QuestionMetals Non-Metals and MetalloidsConcept Practice
3 marks~5 minCriterion B
The table below shows three properties of four elements.
| Element | Appearance | Conducts electricity | Malleable |
|---|---|---|---|
| Iron | shiny yellow-grey | yes | yes |
| Sulfur | dull yellow | no | no |
| Silicon | shiny grey | yes | no |
| Copper | shiny orange-red | yes | yes |
a
Name one element from the table that is a non-metal. [1]
b
Describe the pattern in the table that shows an element is a metal. [1]
c
Silicon shares some properties with metals but also some with non-metals. Describe one way silicon is similar to a metal and one way it is different from a metal. [1]
Solutions
6QuestionMetals Non-Metals and MetalloidsConcept Practice
4 marks~6 minCriterion A
A metal wire and a piece of charcoal are placed on a table.
When you bend the wire, it changes shape. When you bend the charcoal, it snaps.
When you bend the wire, it changes shape. When you bend the charcoal, it snaps.
a
Identify the group (metal or non-metal) that charcoal belongs to. [1]
b
State one physical property of metals that explains why the wire bends without breaking. [1]
c
Compare the physical properties of the wire and the charcoal to explain why one bends and the other snaps. [2]
Solutions
7QuestionMetals Non-Metals and MetalloidsConcept Practice
2 marks~3 minCriterion A
The diagram below shows part of the periodic table. Three elements are labelled A, B, and C.
A = sodium, B = silicon, C = sulfur
A = sodium, B = silicon, C = sulfur
a
Identify which labelled element is a metal. [1]
b
Identify which labelled element is a metalloid and which is a non-metal. [1]
Solutions
8QuestionDisplacement Reactions Between MetalsConcept Practice
3 marks~5 minCriterion B
A student placed pieces of four metals into separate test tubes of copper(II) sulfate solution. The results are shown below.
Copper — no change; blue colour stays
| Metal | Observation |
|---|---|
| Magnesium | blue colour fades quickly; bubbles form |
| Zinc | blue colour fades slowly |
| Iron | blue colour fades very slowly |
Copper — no change; blue colour stays
a
Identify the most reactive metal in the experiment. [1]
b
Describe what the observations tell us about how reactive iron is compared to zinc. [1]
c
Describe the overall trend in reactivity shown by all four metals, from most reactive to least reactive. [1]
Solutions
9QuestionDefinition of ReactivityConcept Practice
2 marks~3 minCriterion A
The diagram shows magnesium reacting with oxygen. Label A = magnesium, Label B = oxygen, Label C = the starting substances, Label D = the substances formed.
a
Identify the label that shows the reactants. [1]
b
Describe what the word "reactants" means. [1]
Solutions
10QuestionDefinition of ReactivityConcept Practice
2 marks~3 minCriterion D
A student cooks tomato sauce in an iron pan and then in a stainless steel pan.
a
State one way the tomato sauce may change when cooked in the iron pan. [1]
b
Describe why stainless steel is a better choice than iron for cooking tomato sauce. [1]
Solutions
11QuestionDefinition of ReactivityConcept Practice
3 marks~5 minCriterion C
The bar chart below shows how many gas bubbles per minute are produced when three metals are added to dilute hydrochloric acid.
| Metal | Bubbles per minute: |
|---|---|
| Magnesium | 45 |
| Zinc | 12 |
| Copper | 0 |
a
Name the metal that produces the most bubbles per minute. [1]
b
Describe what the number of bubbles tells you about how fast each metal reacts. [1]
c
Using the idea of reactivity, compare magnesium and copper. [1]
Solutions
12QuestionFireworks and ExplosionsConcept Practice
2 marks~3 minCriterion B
A student tests four sparklers. Each sparkler contains a different amount of potassium nitrate: 1 g, 2 g, 3 g, or 4 g. She measures how high the sparks reach, in centimetres. All sparklers are the same length and are lit the same way.
a
Identify the independent variable in this investigation. [1]
b
Describe what the student does to make this a fair test. [1]
Solutions
13QuestionFireworks and ExplosionsConcept Practice
2 marks~3 minCriterion D
At a firework display, a safety zone of 50 metres is kept clear of people.
a
Identify one reason why this 50-metre safety zone is needed. [1]
b
Describe how the safety zone should change on a windy day, and explain why. [1]
Solutions
14QuestionChemical Reactions in CookingConcept Practice
2 marks~3 minCriterion A
The diagram below shows bread being made. Flour, water, and yeast are mixed together and baked to produce a loaf of bread and carbon dioxide gas.
a
Identify the reactants in this reaction. [1]
b
Identify the products in this reaction. [1]
Solutions
15QuestionCombustion and Burning ReactionsConcept Practice
2 marks~3 minCriterion B
A student burns a candle three times: for 10 seconds, 20 seconds, and 30 seconds. The mass of the candle is measured before and after each burn.
a
Identify the independent variable in this investigation. [1]
b
Describe what the student should keep the same to make this a fair test. Give one example. [1]
Solutions
16QuestionOxidation and RustingConcept Practice
3 marks~5 minCriterion C
A student left an iron nail outside and measured how much rust formed on it every 2 days.
| Day (days) | 0 | 2 | 4 | 6 | 8 | 10 |
|---|---|---|---|---|---|---|
| Mass of rust (g) | 0.0 | 0.3 | 0.7 | 1.0 | 1.2 | 1.3 |
a
Identify the mass of rust on the nail at day 6. [1]
b
Describe what happens to the mass of rust between day 0 and day 10. [1]
c
Describe how the speed of rusting at the start (days 0–4) compares to the speed of rusting at the end (days 6–10). [1]
Solutions
17QuestionCombustion and Burning ReactionsConcept Practice
2 marks~3 minCriterion A
The diagram shows a burning candle. Four labels point to different parts: wax, oxygen, carbon dioxide, and water vapour.
Identify the two substances that are needed for the candle to burn. [2]
Identify the two substances that are needed for the candle to burn. [2]
Solutions
18QuestionGroups and Periods ExplainedAssessment Practice
6 marks~9 minCriterion C
A medicine cabinet has shelves for type (pain relievers, allergy medicines, cold remedies) and rows for strength (low dose to high dose).
a
Name which part of the medicine cabinet sorting system matches the Groups of the Periodic Table, and which part matches the Periods. [2]
b
Describe one problem with sorting medicines by type only. [1]
c
Compare the medicine cabinet sorting system with the Groups-and-Periods system. Give one way they are similar and one way they are different. [3]
Solutions
19QuestionChemical Reactions in CookingAssessment Practice
5 marks~8 minCriterion C
A potato is baked in an oven at . The table below shows how long it takes to cook.
| Mass of potato (g) | 100 | 150 | 200 | 250 |
|---|---|---|---|---|
| Cooking time (minutes) | 15 | 22 | 30 | ? |
a
Identify the pattern in the cooking times shown in the table. [1]
b
Describe how mass affects cooking time, using the data to support your answer. [2]
c
A student says: "A 200 g potato takes twice as long to cook as a 100 g potato." State whether you agree or disagree, and give one reason using the data. [2]
Solutions
20QuestionNeutralization and Acid-Base ReactionsAssessment Practice
2 marks~3 minCriterion D
You spill vinegar (an acid) on a table and use baking soda (a base) to clean it up. The two substances react and produce fizzing bubbles.
a
Identify one limitation of using baking soda to clean up the vinegar spill. [1]
b
Describe why this limitation is a problem. [1]
Solutions