Grade 4 - Worksheets - Science - Free Printable

Problem Description:

The worksheet provided is about the concept of force, mass, and weight. It explains that matter has mass and takes up space, and heavier objects have more mass. The task involves understanding and applying these concepts.

Solution and Explanation:

#### Step 1: Understanding the Key Concepts
1. Matter: Matter is anything that has mass and takes up space. Examples include solids, liquids, and gases.
2. Mass: Mass is the amount of matter in an object. It is a measure of how much "stuff" is in an object.
3. Weight: Weight is the force exerted on an object due to gravity. While mass is constant, weight can change depending on the gravitational force (e.g., on Earth vs. the Moon).

#### Step 2: Analyzing the Worksheet
- The worksheet provides examples of objects that are heavy or light:
- Heavy Objects: Car, house, elephant, sofa.
- Light Objects: Not explicitly mentioned but implied by contrast with heavy objects.

- The images show:
- A boy lifting a heavy object (labeled "heavy").
- A girl running easily (labeled "light").

#### Step 3: Relating Mass to Heaviness
- Heavier objects have more mass: This means that objects like cars, houses, elephants, and sofas contain more matter than lighter objects.
- The heaviness of an object is directly related to its mass because more mass means more gravitational pull (weight).

#### Step 4: Practical Application
- Example 1: A car is heavier than a bicycle because it contains more matter (mass).
- Example 2: An elephant is heavier than a mouse because the elephant has more mass.

#### Step 5: Answering Potential Questions
If the worksheet includes questions, they might ask students to:
1. Identify which objects are heavy or light based on their mass.
2. Explain why certain objects are heavier than others.
3. Match objects to their corresponding mass categories (heavy vs. light).

Final Answer:

The key takeaway is that heavier objects have more mass. This is because mass is the amount of matter in an object, and more matter means more gravitational pull (weight).

Thus, the solution to the problem is encapsulated in the statement:

\[
\boxed{\text{Heavier objects have more mass.}}
\]