What is the process called when a solid substance breaks down and mixes evenly into a liquid?

• Melting

• Evaporation

• Dissolving

• Condensation

What is the main question this experiment aims to answer?

• How does the type of water affect the taste of AlkaSeltzer?

• Which type of water is best for drinking?

• What factors influence how quickly an AlkaSeltzer tablet dissolves?

• How much water is needed to dissolve an AlkaSeltzer tablet?

What is the primary purpose of conducting this AlkaSeltzer experiment?

• To create a colorful display.

• To learn about different types of beakers.

• To investigate how different water conditions affect reaction rates.

• To determine the chemical composition of AlkaSeltzer.

Tags

NGSS.MS-PS3-4

What is a hypothesis in the context of a scientific experiment?

• A conclusion drawn after the experiment.

• A detailed list of materials used.

• An educated guess or proposed explanation that can be tested.

• The final result of the experiment.

Tags

NGSS.MS-LS1-5

What is the independent variable in this experiment?

• The dissolving time of the AlkaSeltzer tablet.

• The type of water used (tap, warm, cold, salt, acidic).

• The amount of water (150 mL).

• The size of the AlkaSeltzer tablet.

What is the dependent variable in this experiment?

• The type of water used.

• The amount of water.

• The dissolving time of the AlkaSeltzer tablet.

• The temperature of the room.

Tags

NGSS.MS-PS3-4

How many different types of water are being tested in this experiment?

• Three

• Four

• Five

• Six

Why might a scientist wear gloves when handling chemicals or performing experiments?

• To keep their hands warm.

• To protect their skin from potential irritants or contamination.

• To make the experiment look more professional.

• To improve grip on glassware.

How many AlkaSeltzer tablets are prepared for the experiment?

• One

• Three

• Five

• Ten

What volume of each type of water is used in this experiment?

• 100 mL

• 150 mL

• 200 mL

• 250 mL