# Basic Science JSS 1 Curriculum Guides – Meaning of Gravitation and Weightlessness | Effects of Gravitation on Objects

### BASIC SCIENCE

THEME – SCIENCE AND DEVELOPMENT

#### TOPIC 1 – GRAVITATION AND WEIGHTLESSNESS

CLASS – JSS 1

LEARNING AREA – Meaning of Gravitation and Weightlessness | Effects of Gravitation on Objects

### INSTRUCTIONAL MATERIALS

1. Scale balance

2. Various objects

3. Writing materials

### LEARNING OBJECTIVES

By the end of the lesson, students should be able to:

1. explain the meaning of gravitation and weightlessness.

2. state the effects of gravitation on objects.

### FOCUS LESSONS

MEANING OF GRAVITATION AND WEIGHTLESSNESS

GRAVITATION is defined as the force that pull down an object with weight (mass) back to earth. Force that make everything that goes up to fall back down to earth. For example, the force that brings down an orange from the orange tree, it is called gravitational force.

WEIGHTLESSNESS is defined as a condition that make an object with weight (mass) appear as without weight. That’s, the state of being weightless. In space, everything with weight floats.

EFFECTS OF GRAVITATION ON OBJECTS

The effects on gravitation on objects are as follows:

1. It causes falling of all objects.

2. It increases speed of falling objects.

3. It causes objects to move.

4. It makes exchange of gasses possible.

5. It supports life.

### LESSON PRESENTATION

TEACHER’S ACTIVITIES

The teacher,

1. demonstrates the effect of gravitational pull on objects.

2. leads students to demonstrate the effect of gravitation on objects.

3. guides class discussion on the effect of gratification.

STUDENT’S ACTIVITIES

The students,

1. participate in class discussion.

2. carry out demonstrations on gravitation.

3. carry out activities on weighing themselves and recording their individual weights.