Free Exam: Session3_25HKISOHR_Chemistry_Primary2
Number of Questions in Test: 25
Number of Questions in Preview: 5
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[size=4]When you mix sand and water, you can still see both sand and water. What type of change happened? [/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 2
[size=4]Which of the following shows a chemical change?[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 3
[size=4]Rust forms when iron reacts with air and water. What kind of change is rusting?[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 4
[size=4]Nina squeezed a lemon and added it to baking soda. Bubbles formed right away! Why did this happen?[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 5
[size=4]Earth’s crust is mostly made up of which element?[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |