The diagram below shows two models of the atom. The models can be best used to (2 points)

One student burned a piece of paper weighing 4.8 grams. The table below shows the mass of the materials formed by burning the paper. Material formed Mass of material (in grams) Ash 0.1 Smoke ? Dust 2.5 What is most likely the mass of the smoke formed on burning the piece of paper? (2 points)

Two scientists did the same experiment but arrived at different results. The scientists most likely (2 points)

Sarah plans to go on an outing with her friends. On Saturday morning, the sky was cloudy and Sarah’s barometer indicated that the air pressure was falling. When air pressure falls, it indicates the weather conditions will decline. The air pressure kept falling for the next three days and then started rising on the fourth day. Based on scientific knowledge, which of these was the most favorable day for Sarah to go on an outing? (2 points)

Predictions about the future based on the lines on the palm of the hand is an example of (2 points)

Which of these is a guide for conducting investigations to help scientists make reliable conclusions? (2 points)

Meter is the SI base unit for measuring (2 points)

Four groups of students, in different parts of the world, are investigating the reason why the shape of the moon changes from time to time. If the results of their investigations are considered valid, they would most likely be (2 points)

Which of these is an example of pseudoscience? (2 points)

One group of students is investigating the properties of charged objects. Their observations are listed below. When two positively charged objects are brought close to each other, they push each other away. When two negatively charged objects are brought close to each other, they push each other away. When a positively charged object is brought close to a negatively charged object, they pull toward each other. The experiment was repeated by several students using different charged objects. The results were the same. Based on the investigations, which of these theories would the students most likely propose? (2 points)