4th - 7th Grade Engineering and Science Inquiry Activities : Page 11

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

This science fair project idea investigates the difference in reaction times between boys and girls.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea produces sounds by creating vibrations using different objects.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

This science project allows students to study the psychology of happiness.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?