hands on science activities for elementary

Hold a bottle cork in one hand firmly and cut a thin slice with the help of a blade. Place the section in a drop of water on a glass slide and observe under a microscope. You will find cells, which are box-like and closely packed togethe..

. Even the bacteria which cause deadly diseases and food poisoning on one hand help in aiding digestion produce dairy products like milk and yogurt (curds) and help in decomposing huge amounts of waste and dead matter, fertilizing the soil with nitrogen. One of the main aims of conservati..

Take a nichrome wire of about 50 cm length and apply a potential difference of 1.5 V from a battery. Measure the current flowing through the wire using an ammeter connected to it in series, and note the potential difference across the resistance using a voltmeter connected across it. Note down and..

Hold a pin erect on a pile of papers. Keep another pin next to it upside down in such a way that its flat head rests on the pile. Press both these pins down by placing a flat object such as duster. We observe that pin which is erect pierces through the pile of paper..

Take hydrated copper (II) sulphate crystals in a test tube and heat. The blue crystals in the test tube start turning white on heating. Water vapours released on heating condense on the cooler part of the test tube. Collect the water drops in a dish. The crystalline copper sulphate turns to a whit..

How can you make soap at home or in class by using any vegetable oil, caustic soda and common sal..

Take a new iron nail, a gold item (ring or chain) and a silver item (ring or chain) during rainy weather. See that these are exposed to the effects of moist weather for a few days (3 to 4 days). 1) What changes are observed to all these items in the moist air? 2) How will you know which metal is ..

Fleming's left hand rule helps us to predict the movement of a current carrying conductor placed in a magnetic field. According to this rule, extend the thumb, forefinger, and the middle finger of the left hand in such a way that all the three are mutually perpendicular to..

Photosynthesis - Some Activities - Following are some simple activities and experiments related to photosynthesi..

The transport of materials across the cell membranes with the help of energy is called active transport. Both diffusion and osmosis are passive transport mechanisms, not requiring energy. Active transport helps in the transport of ions across the membranes of the cells. The min..