PHILIPPINE NORMAL UNIVERSITY
INSTITUTE OF TEACHING AND LEARNING
Grade 10 SCIENCE
Group #:______________________________
Subject:_____________________________
Year & Section:______________________
Submitted:__________________
Date
Activity #3: Balloon Blow-Up Experiment
Instructions: The teacher will perform the experiment. The class will be divided into
5 groups. Your task is to identify the indications that a chemical reaction occurs and
you will be given a paper which contains a set of questions about the experiment.
A. Record your observations for what happened during each portion of the
experiment in the data table below.
Before the reaction
During the reaction
After the reaction
B. Answer the guide questions.
1. What happened when baking soda was added to vinegar?
2. What signs have you observed which signify a chemical reaction?
3. Is the reaction exothermic or endothermic? Why?
PHILIPPINE NORMAL UNIVERSITY
INSTITUTE OF TEACHING AND LEARNING
Grade 10 SCIENCE
4. Why do you think the balloon gets inflated?
5. Why does the balloon stop blowing up (why does the reaction stop)?
6. What do you call the substances before the chemical reaction?
7. What do you think happened to the reactants in the chemical reaction?
8. What do you call the substances produced during the chemical reaction?