Use the terms in the box to complete the sentences: 1- Fossil fuel. 2- Fossil. 3- Mass extinction. 4- Mold. 5- Cast. 6- Index fossil. - Fill in the letter of the choice that ...
The movement of legs allows people to walk. Which three body systems work together closely to give the legs movement? muscular, nervous, and skeletal.
Which type of precipitation is most likely to occur when the cloud and air temperatures is ... Lila observes that the sky is covered with a sheet of thick, grey clouds.
... of a solid. The light rays bounce off the reflecting surface in a single direction. ... Which property of light contributes to the effects of a colorful sunset? reflection refraction diffraction ... A transparent material that separates white lig
English Literature - Grade 4- Term 4-. Final Review Pack 2 .... His written essay was logical because. _____he managed to reach the top of the mountain in.
(Total 1 mark). 3. What is the maximum mass, in g, of magnesium oxide that can be obtained from the reaction of oxygen with 2.4 g of magnesium? A. 2.4. B. 3.0.
The compounds Na2O, Al2O3 and SO2 respectively are. A. acidic, amphoteric and basic. B. amphoteric, basic and acidic. C. basic, acidic and amphoteric.
Predict whether each of the following solutions would be acidic, alkaline or neutral. In each case explain your reasoning. (i) 0.1 mol dm. â3. FeCl3(aq) â¦
B. CaO(s) + CO2(g) â CaCO3(s). C. CaC2(s) + 2H2O(l) â Ca(OH)2(s) + C2H2(g). D. N2(g) + O2(g) â 2NO(g). (Total 1 mark). 3. Which change will not increase ...
Factors that Affect the Rate of Reaction Questions. 1. Which statements describe the action of a catalyst? I. It does not alter the âH for a reaction. II. It increases ...
EGYPTIAN AMERICAN INTERNATIONAL SCHOOL Elementary Science Department Semester 1 GRADE 5 Name : Date :
Class: Homework sheet 1.1
Read and study lesson pages and/or watch the digital lesson at the blog then answer the following questions: Choose the best answer then fill in the letter of choice:
1. Christopher wanted to learn more about Ganymede, one of Jupiter’s moons. Which of the following sources of information would be Christopher’s best choice? A. his friends B. the local newspaper C. a neighborhood survey D. a university’s astronomy web page 2. Taylor made some observations and has a question she would like to answer. What should Taylor do next? A. form an opinion B. analyze evidence C. plan and conduct an investigation D. draw conclusions and communicate results 3. Joseph wonders what kinds of birds live in his neighborhood. What skill will Joseph use to investigate the variety of birds in his neighborhood? A. infer
D. communicate Page 1 of 2
4. Scientists conduct investigations. What is the main reason for scientific investigations? A. to practice doing experiments B. to learn about recent discoveries C. to demonstrate scientific procedures D. to answer questions about the natural world 5. Sometimes scientists replicate the research of other scientists. Which of the following is the most likely reason scientists do this? A. to form new theories B. to improve the research C. to win prizes for their work D. to verify that the work is accurate
Match each term in column B with its meaning in column A. Column A ____1
A procedure carried out to carefully observe study or test
Column B A.
something to learn about it. ____2
A belief or judgment that hasn’t been proven yet.
The information collected during an investigation.
The study of natural world including observations and
performing investigations. Answer the following:
Scientists often collaborate on investigations and publish their findings in scientific journals. What problems might happen if they did not do this?