Grade 1 float or sink quiz questions with answers.

📚 Quick Study Guide

• 💧 Density: 🧪 Density is how much 'stuff' is packed into a certain space. Think of it as how heavy something is for its size.
• ⚖️ Buoyancy: 🌊 Buoyancy is the upward force that a fluid (like water) exerts on an object. If the buoyant force is greater than the object's weight, it floats!
• 🧮 Density Formula: 📝 Density is calculated as: $Density = \frac{Mass}{Volume}$
• 🍎 Floating vs. Sinking: 🚢 If an object is less dense than water, it floats. If it's more dense, it sinks. Think of a light apple floating versus a heavy rock sinking.
• ✨ Factors Affecting Buoyancy: 🧊 The shape of an object can also affect whether it floats or sinks. Even steel can float if shaped into a boat!

🧪 Practice Quiz

1. What happens to an object if its density is less than water's density?
   1. It sinks.
   2. It floats.
   3. It stays in the middle.
2. Which of these objects is most likely to float in water?
   1. A rock.
   2. A feather.
   3. A metal spoon.
3. What force pushes objects upward in water?
   1. Gravity
   2. Buoyancy
   3. Friction
4. What is density?
   1. How heavy something is.
   2. How much space something takes up.
   3. How much 'stuff' is in a certain space.
5. If an object weighs more than the water it displaces, will it float or sink?
   1. Float
   2. Sink
   3. Neither
6. Which of the following has the greatest effect on buoyancy?
   1. Color
   2. Density
   3. Shape
7. What material is less dense than water?
   1. Steel
   2. Wood
   3. Stone