It’s ok to use tissue but you should cut it up into small pieces they will nibble on it a little bit though, And no not really.
1)How does a hypothesis affect a scientific investigation?
You hypothesis is your prediction for what you're testing for, so it affects what experiment(s) you're going to do.
2) Detail the steps involved in designing an experiment.
Use the scientific method: Make a testable hypothesis. Design a study and collect data. Analyze results and reach conclusions. Communicate the results. Replicate the results.
3) what is the difference between an observation and a conclusion?
Observations are small details that you see during your experiment. Conclusion is the big idea that you get from your experiment.
The wind is just strong enough to move the sand grains which were sorted by size by the wind. Heavier grains were left in place where as smaller grains were carried away. These grains kept moving till they were concentrated in one place usually up a hill. The grains climb the flat slope on the windward side and then fall off the steep side. The dunes may migrate slowly as this process continues, the grains at the upwind side climb the dune with the help of the wind and then fall down the downwind side.<span>
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We first have to understand what a vascular system is. A vascular system consists of the water-carrying tube(xylem) and food-carrying tube(phloem). These 2 tubes are very essential for plants to survive. The xylem transports water to the leaves thru the stem to nourish the leaves so as to make food. The word equation is : Water + Carbon dioxide ----> Glucose + Oxygen. The phloem on the other hand transports the food from the leaves that creates them amd sent them to all parts of the plant. It is often a misconception that food is only sent to the fruits. The plant receives nutrition from the food that is made by the leaves. Overall the vascular system plays a very importamt roles in the survival of the plant.
To put it simple, think of the vascular system of a plant like the circulatory system of a human. Without the circulatory system, the human is unable to receive oxygen for breathing and remove carbon dioxide which is acidic in nature and pose a threat to the human body.
