- A cup and a ½ of Epsom salts
- 2 cups of water
- A glass saucepan
- 2½ tablespoons of powdered laundry detergent
- A paint brush
- A medium-sized sheet of ordinary glass
- 2 oz. of dextrin (a.k.a, baked corn starch - optional)
Step 1: Place the glass saucepan over a medium flame on the stove, and pour into this the two cups of water.
Step 2: Wait for the water to start bubbling before adding the Epsom salts. Stir thoroughly for about 30 seconds until some of the salts dissolve, leaving the rest settled at the bottom of the saucepan.
Step 3: Take the saucepan off the heat and stir into this, the powdered laundry detergent and dextrin.
Step 4: Wait for the water to cool down, before using the paint brush to slather the mixture across the glass sheet; leave it aside to dry. If this is too messy, a good alternative would be to pour the mixture in a shallow tub before submerging the glass sheet into it. Leave the tub in a sunlit area for the glass sheet to dry faster, while the excess water evaporates. The result will be a frosted glass with vivid detailing.
- A handful of beans
- Clay pot
- Watering can
- Rubber gloves
- Paper and colored pencils
Step 1: Choose any kind of beans that you'd like to plant (mung beans, for example), and let kids place these in individual pots. Teach them the importance of using gloves while potting and handling plants, to avoid contaminating their hands.
Step 2: Using an index finger, create little holes in the mud, spacing them apart so that the beans have enough room to grow.
Step 3: Once the beans are tucked into their little mud pockets, cover them up by sliding mud across these openings.
Step 4: Pat the soil gently for a few seconds (to even it out), and then pour a little water into the pot from the watering can. Leave it on a windowsill that receives plenty of sunlight, and have kids water it twice daily during school hours. Have them record their observations by drawing it on paper, and marking each day's date as well.
- A bunch of colorful leaves
- Large magnifying glass
- Red dye
Step 1: Tear a leaf into half (or scrape the top of it), and stain the exposed edge with a single drop of red dye.
Step 2: Sandwich the leaf between two microscope slides, and have students record their observations under the microscope.
Step 3: They will notice how intricate the inside of a leaf is, as the red dye highlights the transparent bits. It is truly a sight to behold for a 5th grader.
Step 4: After this experiment, take students out into an area where there is an abundance of plant life, and using magnifying glasses, have them record their observations by analyzing flowers, leaves, or even insects.
- 1 sturdy stick
- A handful of pebbles
- Mini clock
Step 1: Find a sunny spot to carry out the experiment, whether it's at the beach, a backyard, or school playground. Bury the stick in the mud / sand and have kids take notice of the shadow it casts.
Step 2: Explain to them how the shadow will start to shift, depending on the movement of the sun's rays, much like that of an old-fashioned sundial. Showing them what a sundial looks like beforehand, will make them understand the experiment better.
Step 3: Track the shadow's movement by keeping a clock on hand, marking the time in a notebook before placing a pebble where the shadow of the stick falls.
Step 4: Tell kids to check on the dial every 3 hours, marking the time in their notebooks along with a diagram of the sundial. They must also place a row of pebbles along the length of the stick's shadow, and draw the number (that signifies the time) in the mud / sand using a pencil. They must be whole numbers, so that they can create a sundial that has a complete rotation of 9 - 12 - 3 - 6 - 9.
- Celery stalk (or any light-colored flower on its stem)
- Food coloring (any one color)
- Tall glass of water
Step 1: In a glass of water, add 3 tablespoons of desired food coloring, briefly stirring the solution so that the water is a solid color.
Step 2: Place the celery stalk (snip the bulbous end off) or flower in an upright position in the glass of colored water.
Step 3: The following day, students will be in awe to witness the celery stalk / flower carrying coloration changes, that it absorbs from the colored water.
# Showing experiments on the uses of solar energy
# Making a volcano model
# Demonstrating the anomalous expansion of water
# Conducting litmus tests to identify acids from bases
# Distinguishing a boiled egg from a raw one
# Experimenting with how music helps plants grow
# Testing the effects of salt on the freezing point of water
# Demonstrating how the color of an object determines its size, according to visual perception
# Testing the effect of temperature on a magnet's properties
# Making miniature models of simple machines
# Comparing people's pulse rate from different age groups (using a stethoscope)
# Doing a comparative study of the time taken by different people, to respond to the same stimuli