Science: Simple Machines
Learning how simple machines make work easier
Science: Simple Machines
Learning how simple machines make work easier
Science - Grade 2-3
- 1
A ramp helps move a heavy box into a truck. What simple machine is a ramp?
This simple machine is a flat surface set at an angle.
A ramp is an inclined plane. It helps lift heavy objects by moving them up over a longer distance. - 2
A playground seesaw is an example of which simple machine?
A seesaw is a lever. It moves up and down around a middle point called a fulcrum. - 3
A screw holds two pieces of wood together. What simple machine is a screw?
Think about a tool with threads wrapped around it.
A screw is a simple machine called a screw. Its spiral shape helps it move into materials and hold things together. - 4
A flag is raised on a pole using a rope and wheel. What simple machine is being used?
A pulley is being used. A pulley helps lift or lower things with a rope moving over a wheel. - 5
A knife is used to cut an apple. What simple machine is the knife acting like?
This simple machine has a sharp edge.
The knife acts like a wedge. A wedge helps split or cut materials apart. - 6
A doorknob turns to open a door. Which simple machine does the doorknob act like?
A doorknob acts like a wheel and axle. The round knob turns the axle inside the door. - 7
Name the simple machine in a shovel when it is used to lift dirt.
This simple machine uses a bar that moves around a point.
A shovel can act like a lever when it is used to lift dirt. It helps move the dirt with less effort. - 8
What is the main job of a simple machine?
The main job of a simple machine is to make work easier. It can help people lift, move, or cut things. - 9
A slide at a park is similar to which simple machine?
Think about a ramp.
A slide is similar to an inclined plane. It is a slanted surface that helps things move from high to low. - 10
A wheelbarrow has a wheel in front and handles in back. Name one simple machine found in a wheelbarrow.
One simple machine in a wheelbarrow is the wheel and axle. The wheel helps it roll and carry heavy loads more easily. - 11
A person uses an axe to split wood. What simple machine is the axe head?
This simple machine is often used for splitting.
The axe head is a wedge. It pushes the wood apart as it cuts into it. - 12
A jar lid twists onto a jar. Which simple machine is the lid using?
The jar lid uses a screw. The threads help it twist on and stay tight. - 13
Why is a pulley helpful when lifting a bucket from a well?
Think about how the rope moves over the wheel.
A pulley is helpful because it makes it easier to lift the bucket. It changes the direction of the pull on the rope. - 14
A ruler balanced on a block can tip up and down. Which simple machine does this show?
This shows a lever. The ruler moves around the block, which acts as the fulcrum. - 15
Give one example of a simple machine you use at home and tell how it helps you.
You might think about tools, doors, or kitchen items.
One example is a doorknob, which is a wheel and axle. It helps me open a door more easily by turning it.