Uniform mixed. MIXTURES Mixtures are combinations of two or more substances that can be homogeneous or heterogeneous. Homogeneous mixtures appear uniform all throughout because they have the same proportion. Heterogeneous mixtures are not uniform in proportion where combined substances are not evenly spread or ACTIVITY 1 Mystery Combinations Heterogeneous Non-uniform Materials: coffee powder, sugar, salt (table salt) 3 glasses half-filled with water, stirrer Procedure: Using PROBEX (Predict, Observe, Explain) 1. Using the graphic organizer below, make predictions of what will happen if coffee, sugar and salt is added to each of the glass with water. Mixtures Predictions Observation Explain Salt in water Coffee in water Sugar in water 2. After giving your predictions, add the materials to the water. 3. Then write your observations. ACTIVITY 2 Mix It Up! For every observation, give a reasonable explanation. Answer the guide questions: 1. What are the states of materials used that were combined with water? 2. What happened to these materials when mixed with water? 3. What is the appearance of the combination of materials? 4. What can you conclude in doing this activity? Materials: vinegar, cooking oil, water, pebbles, sand or soil soy sauce, powdered juice. 3 glasses and a plastic container, spoons Procedure: Directions: Mix the following and observe. Fill out the table below. Label 1 - Put one cup of sand or soil and one cup of pebbles in a container. Label 2 - Put 3 spoonful of cooking oil and 3 spoonful of water in a glass. Label 3-Put 3 spoonful vinegar and 3 spoonful soy sauce in a glass. Label 4 - Put powdered juice in a glass of water.
Please Answer with Solution1.How much force is needed to accelerate a 31 skateboard at 5m/s²2.How much force is needed to accelerate a 25kg bowling ball at 2m/s²3.If a 2kg bird is pushed by the wind with a force of 2N,How fast does the bird accelerate?4.What is the acceleration of a 50kg object pushed with a force of 500 newtons? 5.A force of 250N is applied to an object that accelerates at a rate of 5m/sec.What is the mass of the object?